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CVE-2008-1948

10.0 · HIGH

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 of Server Names in a TLS 1.0 Client H…

Published May 21, 2008gnuCWE-189EPSS 12.02%

Overview

CVE-2008-1948 is a high-severity vulnerability affecting gnu gnutls. It was published on May 21, 2008 and has a CVSS 2.0 base score of 10.0 (HIGH).

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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 of Server Names in a TLS 1.0 Client Hello message during extension handling, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a zero value for the length of Server Names, which leads to a buffer overflow in session resumption data in the pack_security_parameters function, aka GNUTLS-SA-2008-1-1.

Remediation

Check the references section for vendor advisories and patches from gnu. Update gnutls to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refgit.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commitdiff%3Bh=bc8102405fda11ea00ca3b42acc4f4bce9d6e97bReflists.gnu.org/archive/html/gnutls-devel/2008-05/msg00051.htmlReflists.gnu.org/archive/html/gnutls-devel/2008-05/msg00055.htmlReflists.gnu.org/archive/html/gnutls-devel/2008-05/msg00060.htmlReflists.opensuse.org/opensuse-security-announce/2008-09/msg00003.htmlRefsecunia.com/advisories/30287Refsecunia.com/advisories/30302Refsecunia.com/advisories/30317Refsecunia.com/advisories/30324Refsecunia.com/advisories/30330

How CyberStrike helps

Frequently asked questions

What is CVE-2008-1948?

CVE-2008-1948 is a high-severity vulnerability affecting gnu gnutls. It was published on May 21, 2008 and has a CVSS 2.0 base score of 10.0 (HIGH).

How severe is CVE-2008-1948?

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2008-1948?

Check the references section for vendor advisories and patches from gnu. Update gnutls to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2008-1948?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-1948 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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