Enterprise Linux For Real Time Red Hat Enterprise Linux For Real Time

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By the Year

In 2024 there have been 3 vulnerabilities in Red Hat Enterprise Linux For Real Time with an average score of 7.5 out of ten. Last year Enterprise Linux For Real Time had 7 security vulnerabilities published. Right now, Enterprise Linux For Real Time is on track to have less security vulnerabilities in 2024 than it did last year. However, the average CVE base score of the vulnerabilities in 2024 is greater by 1.47.

Year Vulnerabilities Average Score
2024 3 7.50
2023 7 6.03
2022 10 7.16
2021 1 7.10
2020 0 0.00
2019 15 7.23
2018 4 6.95

It may take a day or so for new Enterprise Linux For Real Time vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.

Recent Red Hat Enterprise Linux For Real Time Security Vulnerabilities

A flaw was found in the Linux kernel's NVMe driver

CVE-2023-6356 7.5 - High - February 07, 2024

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.

NULL Pointer Dereference

A flaw was found in the Linux kernel's NVMe driver

CVE-2023-6535 7.5 - High - February 07, 2024

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.

NULL Pointer Dereference

A flaw was found in the Linux kernel's NVMe driver

CVE-2023-6536 7.5 - High - February 07, 2024

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.

NULL Pointer Dereference

A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel

CVE-2023-4732 4.7 - Medium - October 03, 2023

A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.

Race Condition

A use-after-free flaw was found in the Linux kernels Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID

CVE-2023-4147 7.8 - High - August 07, 2023

A use-after-free flaw was found in the Linux kernels Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.

Dangling pointer

A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel

CVE-2023-4132 5.5 - Medium - August 03, 2023

A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial of service condition.

Dangling pointer

A flaw was found in the Linux kernels IP framework for transforming packets (XFRM subsystem)

CVE-2023-3772 4.4 - Medium - July 25, 2023

A flaw was found in the Linux kernels IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.

NULL Pointer Dereference

A race condition vulnerability was found in the vmwgfx driver in the Linux kernel

CVE-2023-33951 5.3 - Medium - July 24, 2023

A race condition vulnerability was found in the vmwgfx driver in the Linux kernel. The flaw exists within the handling of GEM objects. The issue results from improper locking when performing operations on an object. This flaw allows a local privileged user to disclose information in the context of the kernel.

Race Condition

A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel

CVE-2023-33952 6.7 - Medium - July 24, 2023

A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which may allow a local privileged user to escalate privileges and execute code in the context of the kernel.

Double-free

A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel

CVE-2023-0179 7.8 - High - March 27, 2023

A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution.

Integer Overflow or Wraparound

A flaw was found in the Linux kernel

CVE-2021-3669 5.5 - Medium - August 26, 2022

A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.

Allocation of Resources Without Limits or Throttling

A NULL pointer dereference flaw was found in the Linux kernels IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection

CVE-2021-3659 5.5 - Medium - August 22, 2022

A NULL pointer dereference flaw was found in the Linux kernels IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.

NULL Pointer Dereference

A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU

CVE-2022-0330 7.8 - High - March 25, 2022

A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system.

Improper Preservation of Permissions

A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64

CVE-2022-0435 8.8 - High - March 25, 2022

A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed. This flaw allows a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network.

Memory Corruption

A use-after-free flaw was found in the Linux kernels FUSE filesystem in the way a user triggers write()

CVE-2022-1011 7.8 - High - March 18, 2022

A use-after-free flaw was found in the Linux kernels FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.

Dangling pointer

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values

CVE-2022-0847 7.8 - High - March 10, 2022

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

Improper Initialization

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization

CVE-2021-3656 8.8 - High - March 04, 2022

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.

AuthZ

A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which

CVE-2021-3744 5.5 - Medium - March 04, 2022

A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.

Memory Leak

.A flaw was found in the

CVE-2021-3609 7 - High - March 03, 2022

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

Race Condition

A use-after-free flaw was found in the Linux kernels Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition

CVE-2021-3752 7.1 - High - February 16, 2022

A use-after-free flaw was found in the Linux kernels Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Race Condition

A flaw was found in the Linux kernel in versions before 5.12

CVE-2021-3501 7.1 - High - May 06, 2021

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

Memory Corruption

A vulnerability was found in Linux Kernel

CVE-2019-14815 7.8 - High - November 25, 2019

A vulnerability was found in Linux Kernel, where a Heap Overflow was found in mwifiex_set_wmm_params() function of Marvell Wifi Driver.

Heap-based Buffer Overflow

There is heap-based buffer overflow in kernel, all versions up to, excluding 5.3, in the marvell wifi chip driver in Linux kernel

CVE-2019-14816 7.8 - High - September 20, 2019

There is heap-based buffer overflow in kernel, all versions up to, excluding 5.3, in the marvell wifi chip driver in Linux kernel, that allows local users to cause a denial of service(system crash) or possibly execute arbitrary code.

Heap-based Buffer Overflow

There is heap-based buffer overflow in Linux kernel, all versions up to, excluding 5.3, in the marvell wifi chip driver in Linux kernel

CVE-2019-14814 7.8 - High - September 20, 2019

There is heap-based buffer overflow in Linux kernel, all versions up to, excluding 5.3, in the marvell wifi chip driver in Linux kernel, that allows local users to cause a denial of service(system crash) or possibly execute arbitrary code.

Heap-based Buffer Overflow

An out-of-bounds access issue was found in the Linux kernel

CVE-2019-14821 8.8 - High - September 19, 2019

An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring->first' and 'ring->last' value could be supplied by a host user-space process. An unprivileged host user or process with access to '/dev/kvm' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system.

Memory Corruption

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality

CVE-2019-14835 7.8 - High - September 17, 2019

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

Classic Buffer Overflow

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker

CVE-2019-9506 8.1 - High - August 14, 2019

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.

Use of a Broken or Risky Cryptographic Algorithm

In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process

CVE-2019-13272 7.8 - High - July 17, 2019

In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.

Improper Privilege Management

A flaw was found in the Linux kernel

CVE-2019-10126 9.8 - Critical - June 14, 2019

A flaw was found in the Linux kernel. A heap based buffer overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c might lead to memory corruption and possibly other consequences.

Heap-based Buffer Overflow

fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might

CVE-2019-11833 5.5 - Medium - May 15, 2019

fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.

Use of Uninitialized Resource

The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel before 5.0.15

CVE-2019-11884 3.3 - Low - May 10, 2019

The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel before 5.0.15 allows a local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not end with a '\0' character.

A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1.

CVE-2019-3460 6.5 - Medium - April 11, 2019

A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1.

Improper Input Validation

A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before 5.1-rc1.

CVE-2019-3459 6.5 - Medium - April 11, 2019

A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before 5.1-rc1.

Out-of-bounds Read

A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled

CVE-2019-3887 5.6 - Medium - April 09, 2019

A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.

AuthZ

The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak.

CVE-2019-7222 5.5 - Medium - March 21, 2019

The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak.

In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which

CVE-2018-20784 9.8 - Critical - February 22, 2019

In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.

Infinite Loop

A flaw was found in the Linux kernel's ext4 filesystem

CVE-2018-10881 5.5 - Medium - July 26, 2018

A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound access in ext4_get_group_info function, a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.

Memory Corruption

The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of

CVE-2018-13405 7.8 - High - July 06, 2018

The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.

Improper Privilege Management

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11

CVE-2017-15129 4.7 - Medium - January 09, 2018

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.

Race Condition

The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36

CVE-2017-18017 9.8 - Critical - January 03, 2018

The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action.

Dangling pointer

The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure

CVE-2016-4470 5.5 - Medium - June 27, 2016

The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.

The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack

CVE-2016-3707 8.1 - High - June 27, 2016

The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack that occurs after reading the local icmp_echo_sysrq file.

Authorization

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