GHSA-4c6r-jqvh-f3hm

GHSA-4c6r-jqvh-f3hm PUBLISHED CVSS 9.800000190734863 CRITICAL

Record from GitHub Advisory Database · Published May 17, 2022

Heap-based buffer overflow in the yy_get_next_buffer function in Flex before 2.6.1 might allow context-dependent attackers to cause a denial of service or possibly execute arbitrary code via vectors involving num_to_read.

Risk scores

CVSS 3.0

9.800000190734863

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Timeline

May 17, 2022 CVE Published
Apr 29, 2026 Distribution Patch
Apr 30, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-4c6r-jqvh-f3hm
vulnetix vdb fixes GHSA-4c6r-jqvh-f3hm

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-4c6r-jqvh-f3hm/fixes/registry"

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References

https://nvd.nist.gov/vuln/detail/CVE-2016-6354 advisory
http://www.openwall.com/lists/oss-security/2016/07/26/12 url
https://github.com/westes/flex/commit/a5cbe929ac3255d371e698f62dc256afe7006466 url
http://www.openwall.com/lists/oss-security/2016/07/18/8 url
https://security.gentoo.org/glsa/201701-31 url
http://www.debian.org/security/2016/dsa-3653 url

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