CVE-2008-1949

Public Exploit

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.

Category

9.3
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 15.17% Top 10%
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory mandriva.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/30331 third party advisory vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9519 signature vdb entry
http://secunia.com/advisories/31939 third party advisory
http://www.ubuntu.com/usn/usn-613-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2008-09/msg00003.html vendor advisory
http://www.redhat.com/support/errata/RHSA-2008-0492.html vendor advisory
http://www.openwall.com/lists/oss-security/2008/05/20/1 mailing list
http://security.gentoo.org/glsa/glsa-200805-20.xml vendor advisory
http://secunia.com/advisories/30355 third party advisory
http://secunia.com/advisories/30317 third party advisory vendor advisory
http://www.securityfocus.com/archive/1/492282/100/0/threaded mailing list
http://www.redhat.com/support/errata/RHSA-2008-0489.html vendor advisory
http://www.securityfocus.com/archive/1/492464/100/0/threaded mailing list
http://lists.gnu.org/archive/html/gnutls-devel/2008-05/msg00051.html mailing list
http://sourceforge.net/project/shownotes.php?release_id=600646&group_id=21558
http://secunia.com/advisories/30324 third party advisory vendor advisory
http://secunia.com/advisories/30302 third party advisory vendor advisory
http://lists.gnu.org/archive/html/gnutls-devel/2008-05/msg00055.html mailing list
http://www.vupen.com/english/advisories/2008/1583/references vdb entry
http://www.securityfocus.com/bid/29292 patch vdb entry
https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00615.html vendor advisory
http://secunia.com/advisories/30330 third party advisory vendor advisory
http://www.vupen.com/english/advisories/2008/1582/references vdb entry
http://www.openwall.com/lists/oss-security/2008/05/20/3 mailing list
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0174
http://secunia.com/advisories/30338 third party advisory vendor advisory
http://lists.gnu.org/archive/html/gnutls-devel/2008-05/msg00060.html mailing list
http://www.debian.org/security/2008/dsa-1581 vendor advisory
http://www.openwall.com/lists/oss-security/2008/05/20/2 mailing list
https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00590.html vendor advisory
http://securityreason.com/securityalert/3902 third party advisory
https://issues.rpath.com/browse/RPL-2552
http://secunia.com/advisories/30287 third party advisory vendor advisory
http://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commitdiff%3Bh=bc8102405fda11ea00ca3b42acc4f4bce9d6e97b
http://www.cert.fi/haavoittuvuudet/advisory-gnutls.html exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/42530 vdb entry
https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00487.html vendor advisory
http://www.securitytracker.com/id?1020058 vdb entry
http://www.mandriva.com/security/advisories?name=MDVSA-2008:106 vendor advisory
http://www.kb.cert.org/vuls/id/252626 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2008-1949?
CVE-2008-1949 has been scored as a critical severity vulnerability.
How to fix CVE-2008-1949?
To fix CVE-2008-1949, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2008-1949 being actively exploited in the wild?
It is possible that CVE-2008-1949 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~15% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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