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CVE-2008-1949

25
FAUCET Score

CVE-2008-1949 describes a denial-of-service vulnerability in the GnuTLS library, specifically affecting gnutls-serv in versions prior to 2.2.4. This flaw allows remote attackers to crash the server by sending a crafted TLS message containing multiple Client Hello messages, leading to a NULL dereference. With a CVSS score of 9.3, it is considered critical due to its network-based attack vector, medium complexity, and complete impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been identified, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.18CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.18:*:*:*:*:*:*:*
1.0.19CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.19:*:*:*:*:*:*:*
1.0.20CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.20:*:*:*:*:*:*:*
1.0.21CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.21:*:*:*:*:*:*:*
1.0.22CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.22:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.77%
Probability of exploitation in next 30 days
EPSS Percentile
92.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0577 is in the 64th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: gnutls-0:1.0.20-4.el4_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gnutls-0:1.4.1-3.el5_1
View patch

Vendor Advisories (1)

redhatCVE-2008-1949Important

GNUTLS-SA-2008-1-2 GnuTLS null-pointer dereference

May 19, 2008

References

git.savannah.gnu.org / gitweb
lists.gnu.org / archive/html/gnutls-devel/2008-05/msg00051.html
lists.gnu.org / archive/html/gnutls-devel/2008-05/msg00055.html
lists.gnu.org / archive/html/gnutls-devel/2008-05/msg00060.html
lists.opensuse.org / opensuse-security-announce/2008-09/msg00003.html
secunia.com / advisories/30287
Vendor Advisory
secunia.com / advisories/30302
Vendor Advisory
secunia.com / advisories/30317
Vendor Advisory
secunia.com / advisories/30324
Vendor Advisory
secunia.com / advisories/30330
Vendor Advisory
secunia.com / advisories/30331
Vendor Advisory
secunia.com / advisories/30338
Vendor Advisory
secunia.com / advisories/30355
secunia.com / advisories/31939
security.gentoo.org / glsa/glsa-200805-20.xml
securityreason.com / securityalert/3902
exchange.xforce.ibmcloud.com / vulnerabilities/42530
issues.rpath.com / browse/RPL-2552
sourceforge.net / project/shownotes.php
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9519
redhat.com / archives/fedora-package-announce/2008-May/msg00487.html
redhat.com / archives/fedora-package-announce/2008-May/msg00590.html
redhat.com / archives/fedora-package-announce/2008-May/msg00615.html
wiki.rpath.com / wiki/Advisories:rPSA-2008-0174
cert.fi / haavoittuvuudet/advisory-gnutls.html
Exploit
debian.org / security/2008/dsa-1581
kb.cert.org / vuls/id/252626
US Government Resource
mandriva.com / security/advisories
openwall.com / lists/oss-security/2008/05/20/1
openwall.com / lists/oss-security/2008/05/20/2
openwall.com / lists/oss-security/2008/05/20/3
redhat.com / support/errata/RHSA-2008-0489.html
redhat.com / support/errata/RHSA-2008-0492.html
securityfocus.com / archive/1/492282/100/0/threaded
securityfocus.com / archive/1/492464/100/0/threaded
securityfocus.com / bid/29292
Patch
securitytracker.com / id
ubuntu.com / usn/usn-613-1
vupen.com / english/advisories/2008/1582/references
vupen.com / english/advisories/2008/1583/references