Redis Labs

An issue in RedisGraph v.2.12.10 allows an attacker to execute arbitrary code

CVE-2023-47003 9.8 - Critical - November 16, 2023

An issue in RedisGraph v.2.12.10 allows an attacker to execute arbitrary code and cause a denial of service via a crafted string in DataBlock_ItemIsDeleted.

NULL Pointer Dereference

Buffer Overflow vulnerability in Redis RedisGraph v.2.x through v.2.12.8 and fixed in v.2.12.9

CVE-2023-47004 8.8 - High - November 06, 2023

Buffer Overflow vulnerability in Redis RedisGraph v.2.x through v.2.12.8 and fixed in v.2.12.9 allows an attacker to execute arbitrary code via the code logic after valid authentication.

Memory Corruption

Redis is an open source, in-memory database that persists on disk

CVE-2021-32672 4.3 - Medium - October 04, 2021

Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debuggers protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis with Lua debugging support (3.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14.

Out-of-bounds Read

A segmentation fault in the redis-server component of Redis 5.0.7 leads to a denial of service (DOS)

CVE-2020-21468 7.5 - High - September 20, 2021

A segmentation fault in the redis-server component of Redis 5.0.7 leads to a denial of service (DOS). NOTE: the vendor cannot reproduce this issue in a released version, such as 5.0.7

Redis is an in-memory database that persists on disk

CVE-2021-32761 7.5 - High - July 21, 2021

Redis is an in-memory database that persists on disk. A vulnerability involving out-of-bounds read and integer overflow to buffer overflow exists starting with version 2.2 and prior to versions 5.0.13, 6.0.15, and 6.2.5. On 32-bit systems, Redis `*BIT*` command are vulnerable to integer overflow that can potentially be exploited to corrupt the heap, leak arbitrary heap contents or trigger remote code execution. The vulnerability involves changing the default `proto-max-bulk-len` configuration parameter to a very large value and constructing specially crafted commands bit commands. This problem only affects Redis on 32-bit platforms, or compiled as a 32-bit binary. Redis versions 5.0.`3m 6.0.15, and 6.2.5 contain patches for this issue. An additional workaround to mitigate the problem without patching the `redis-server` executable is to prevent users from modifying the `proto-max-bulk-len` configuration parameter. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.

Out-of-bounds Read

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker

CVE-2021-32625 8.8 - High - June 02, 2021

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer, could be exploited using the STRALGO LCS command to corrupt the heap and potentially result with remote code execution. This is a result of an incomplete fix by CVE-2021-29477. The problem is fixed in version 6.2.4 and 6.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the STRALGO LCS command. On 64 bit systems which have the fixes of CVE-2021-29477 (6.2.3 or 6.0.13), it is sufficient to make sure that the proto-max-bulk-len config parameter is smaller than 2GB (default is 512MB).

Integer Overflow or Wraparound

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker

CVE-2021-29478 8.8 - High - May 04, 2021

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis 6.2 before 6.2.3 could be exploited to corrupt the heap and potentially result with remote code execution. Redis 6.0 and earlier are not directly affected by this issue. The problem is fixed in version 6.2.3. An additional workaround to mitigate the problem without patching the `redis-server` executable is to prevent users from modifying the `set-max-intset-entries` configuration parameter. This can be done using ACL to restrict unprivileged users from using the `CONFIG SET` command.

Integer Overflow or Wraparound

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker

CVE-2021-29477 8.8 - High - May 04, 2021

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer could be exploited using the `STRALGO LCS` command to corrupt the heap and potentially result with remote code execution. The problem is fixed in version 6.2.3 and 6.0.13. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the `STRALGO LCS` command.

Integer Overflow or Wraparound

A heap overflow issue was found in Redis in versions before 5.0.10

CVE-2021-3470 5.3 - Medium - March 31, 2021

A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemalloc or glibc's malloc, leading to potential out of bound write or process crash. Effectively this flaw does not affect the vast majority of users, who use jemalloc or glibc malloc.

Memory Corruption

Redis is an open-source, in-memory database that persists on disk

CVE-2021-21309 8.8 - High - February 26, 2021

Redis is an open-source, in-memory database that persists on disk. In affected versions of Redis an integer overflow bug in 32-bit Redis version 4.0 or newer could be exploited to corrupt the heap and potentially result with remote code execution. Redis 4.0 or newer uses a configurable limit for the maximum supported bulk input size. By default, it is 512MB which is a safe value for all platforms. If the limit is significantly increased, receiving a large request from a client may trigger several integer overflow scenarios, which would result with buffer overflow and heap corruption. We believe this could in certain conditions be exploited for remote code execution. By default, authenticated Redis users have access to all configuration parameters and can therefore use the CONFIG SET proto-max-bulk-len to change the safe default, making the system vulnerable. **This problem only affects 32-bit Redis (on a 32-bit system, or as a 32-bit executable running on a 64-bit system).** The problem is fixed in version 6.2, and the fix is back ported to 6.0.11 and 5.0.11. Make sure you use one of these versions if you are running 32-bit Redis. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent clients from directly executing `CONFIG SET`: Using Redis 6.0 or newer, ACL configuration can be used to block the command. Using older versions, the `rename-command` configuration directive can be used to rename the command to a random string unknown to users, rendering it inaccessible. Please note that this workaround may have an additional impact on users or operational systems that expect `CONFIG SET` to behave in certain ways.

Integer Overflow or Wraparound