CVE-2008-2377

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

5.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2008-08-08 19:41 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:53 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 5.5% in the next 30 days (EPSS).
• Severity: 7.6 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2008-08-08 19:41 UTC

Last modified

2026-06-16 22:53 UTC

Exploit probability

5.5% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Modified

Affected

• Gnu Gnutls 2.3.5
• Gnu Gnutls 2.3.6
• Gnu Gnutls 2.3.7
• Gnu Gnutls 2.3.8
• Gnu Gnutls 2.3.9
• Gnu Gnutls 2.4.0

Attack profile CVSS 2.0 · 7.6

Attack vector

Network

Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

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