CVE-2014-3466 Memory corruption in n/a

Medium 6.8 Published 3 Jun 2014 Updated 6 Aug 2024

Remote servers can trigger a buffer overflow in GnuTLS via a long session ID, potentially causing denial of service or arbitrary code execution.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2014-3466?

CVE-2014-3466 is a medium-severity memory corruption vulnerability in Gnu Gnutls, published on 3 Jun 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in the read_server_hello function in lib/gnutls_handshake.c in GnuTLS before 3.1.25, 3.2.x before 3.2.15, and 3.3.x before 3.3.4 allows remote servers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a long session id in a ServerHello message.

Weakness: CWE-119

Which versions are affected by CVE-2014-3466?

It affects 1 product.

Linux distribution packages (20)

`gnutls` Red Hat:enterprise_linux:6::client	All versions	`0:2.8.5-14.el6_5`
`gnutls-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:2.8.5-14.el6_5`
`gnutls-devel` Red Hat:enterprise_linux:6::client	All versions	`0:2.8.5-14.el6_5`
`gnutls-guile` Red Hat:enterprise_linux:6::client	All versions	`0:2.8.5-14.el6_5`
`gnutls-utils` Red Hat:enterprise_linux:6::client	All versions	`0:2.8.5-14.el6_5`
`gnutls` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.8.5-14.el6_5`
`gnutls-debuginfo` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.8.5-14.el6_5`
`gnutls-devel` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.8.5-14.el6_5`
`gnutls-guile` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.8.5-14.el6_5`
`gnutls-utils` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.8.5-14.el6_5`
`gnutls` Red Hat:enterprise_linux:6::server	All versions	`0:2.8.5-14.el6_5`
`gnutls-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:2.8.5-14.el6_5`
`gnutls-devel` Red Hat:enterprise_linux:6::server	All versions	`0:2.8.5-14.el6_5`
`gnutls-guile` Red Hat:enterprise_linux:6::server	All versions	`0:2.8.5-14.el6_5`
`gnutls-utils` Red Hat:enterprise_linux:6::server	All versions	`0:2.8.5-14.el6_5`
`gnutls` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.8.5-14.el6_5`
`gnutls-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.8.5-14.el6_5`
`gnutls-devel` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.8.5-14.el6_5`
`gnutls-guile` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.8.5-14.el6_5`
`gnutls-utils` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.8.5-14.el6_5`

Products include Gnu Gnutls.

How do I fix CVE-2014-3466?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2014-3466 being exploited?

There is no known exploitation of CVE-2014-3466 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Gnu Gnutls vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-3466, DLA-0001-1, DSA-2944-1, GHSA-cc2g-hj2r-x228, RHSA-2014:0595, UBUNTU-CVE-2014-3466 and 1 more.