Use After Free Affecting yara package, versions <3.6.0+dfsg-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-YARA-20079370
- published24 Sept 2026
- disclosed14 May 2017
Introduced: 14 May 2017
CVE-2017-8929 (opens in a new tab)How to fix?
Upgrade Echo:latest yara to version 3.6.0+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream yara package and not the yara package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
The sized_string_cmp function in libyara/sizedstr.c in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule.