Virustotal Yara
By the Year
In 2021 there have been 1 vulnerability in Virustotal Yara with an average score of 9.1 out of ten. Yara did not have any published security vulnerabilities last year. That is, 1 more vulnerability have already been reported in 2021 as compared to last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2021 | 1 | 9.10 |
| 2020 | 0 | 0.00 |
| 2019 | 2 | 6.65 |
| 2018 | 5 | 6.42 |
It may take a day or so for new Yara 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 Virustotal Yara Security Vulnerabilities
An integer overflow and several buffer overflow reads in libyara/modules/macho/macho.c in YARA v4.0.3 and earlier could
CVE-2021-3402
9.1 - Critical
- May 14, 2021
An integer overflow and several buffer overflow reads in libyara/modules/macho/macho.c in YARA v4.0.3 and earlier could allow an attacker to either cause denial of service or information disclosure via a malicious Mach-O file. Affects all versions before libyara 4.0.4
Integer Overflow or Wraparound
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size
CVE-2019-19648
7.8 - High
- December 09, 2019
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
Out-of-bounds Read
An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1
CVE-2019-5020
5.5 - Medium
- July 31, 2019
An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative value to be read to satisfy an assert, resulting in Denial of Service. An attacker can create a malicious binary to trigger this vulnerability.
Improper Input Validation
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c
CVE-2018-19974
5.5 - Medium
- December 17, 2018
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).
Use of Uninitialized Resource
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read data from any arbitrary address in memory, in libyara/exec.c
CVE-2018-19975
5.5 - Medium
- December 17, 2018
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read data from any arbitrary address in memory, in libyara/exec.c. Specifically, OP_COUNT can read a DWORD.
Out-of-bounds Read
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c
CVE-2018-19976
5.5 - Medium
- December 17, 2018
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.
Information Disclosure
In YARA 3.7.1 and prior, parsing a specially crafted compiled rule file
CVE-2018-12034
7.8 - High
- June 15, 2018
In YARA 3.7.1 and prior, parsing a specially crafted compiled rule file can cause an out of bounds read vulnerability in yr_execute_code in libyara/exec.c.
Out-of-bounds Read
In YARA 3.7.1 and prior, parsing a specially crafted compiled rule file
CVE-2018-12035
7.8 - High
- June 15, 2018
In YARA 3.7.1 and prior, parsing a specially crafted compiled rule file can cause an out of bounds write vulnerability in yr_execute_code in libyara/exec.c.
Memory Corruption
libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings)
CVE-2017-9438
7.5 - High
- June 05, 2017
libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.
Stack Exhaustion
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