CVE-2008-1948

The _gnutls_server_name_recv_params function in lib/ext_server_name.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 does not properly calculate the number…

published May 21, 2008

CVSS
—
EPSS
12%
Percentile
96.1
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow can happen here! The _gnutls_server_name_recv_params function in GnuTLS messes up the Server Name length in TLS Client Hello messages, opening a door to crashes or arbitrary code execution. 🔥 Think of it like a restaurant that miscalculates the number of guests at a reservation — if they think no one is coming, they might serve up an empty table, leaving everything unstable for those who do show up. 🍽️ An attacker could exploit this vulnerability to crash the service or, even worse, execute arbitrary code — disrupting operations or opening the floodgates for further attacks. It’s a rollercoaster of woes, as the consequences could lead to service outages and potential data breaches if exploited!

Put simply

Think of it like a restaurant that miscalculates the number of guests at a reservation — if they think no one is coming, they might serve up an empty table, leaving everything unstable for those who do show up. 🍽️ This vulnerability arises because the _gnutls_server_name_recv_params function does not correctly calculate the length of Server Names in a TLS 1.0 Client Hello message. This oversight can lead to a buffer overflow in the pack_security_parameters function, potentially allowing for denial of service or arbitrary code execution.

What to do

An attacker could exploit this vulnerability to crash the service or, even worse, execute arbitrary code — disrupting operations or opening the floodgates for further attacks. It’s a rollercoaster of woes, as the consequences could lead to service outages and potential data breaches if exploited! To keep your systems safe, update GnuTLS to version 2.2.4 or later. Regular maintenance and monitoring of your application environments can also help in identifying and mitigating these risks. Don’t forget to conduct thorough testing of your updates! You’ve got this! Stay vigilant, keep your software updated, and you’ll keep the threats at bay. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.12018 · 96.1th percentile
Published
2008-05-21T10:00Z
EPSS history
Timeline
  • 21 MAY 10:00Z
    The _gnutls_server_name_recv_params function in lib/ext_server_name.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 does not properly calculate the number…
    cvelistv5