CVE-2018-19974

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).

References

Affected packages

Git / github.com/virustotal/yara

Affected ranges

Type

GIT

Repo

https://github.com/virustotal/yara

Events

Introduced

Last affected

309894830a5f9ff8cc22155d7719ea608de7bc9d

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.8.1"
        }
    ]
}

Affected versions

v2.*

v2.0.0

v2.1.0

v3.*

v3.0.0

v3.1.0

v3.2.0

v3.3.0

v3.4.0

v3.6.0

v3.7.0

v3.8.0

v3.8.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19974.json"