CVE-2008-1949 Null dereference in n/a
Remote attackers can cause a denial of service via NULL dereference by sending multiple Client Hello messages in a single TLS packet.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2008-1949?
CVE-2008-1949 is a critical vulnerability in Gnu Gnutls, published on 21 May 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The _gnutls_recv_client_kx_message function in lib/gnutls_kx.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 continues to process Client Hello messages within a TLS message after one has already been processed, which allows remote attackers to cause a denial of service (NULL dereference and crash) via a TLS message containing multiple Client Hello messages, aka GNUTLS-SA-2008-1-2.
Weakness: CWE-287
Which versions are affected by CVE-2008-1949?
It affects 1 product.
Products include Gnu Gnutls.
How do I fix CVE-2008-1949?
Upgrade to a fixed version.
Is CVE-2008-1949 being exploited?
There is no known exploitation of CVE-2008-1949 in the wild and no public exploit code.
Other vulnerabilities in Gnu Gnutls
Sources
Also known as GHSA-5mrf-xh4h-r8wx.