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Vulnerability Details : CVE-2008-2377

Use-after-free vulnerability in the _gnutls_handshake_hash_buffers_clear function in lib/gnutls_handshake.c in libgnutls in GnuTLS 2.3.5 through 2.4.0 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via TLS transmission of data that is improperly used when the peer calls gnutls_handshake within a normal session, leading to attempted access to a deallocated libgcrypt handle.
Publish Date : 2008-08-08 Last Update Date : 2009-06-19
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- CVSS Scores & Vulnerability Types

CVSS Score
7.6
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflow
CWE ID 119

- Vendor Statements

Not vulnerable. This issue did not affect the versions of gnutls as shipped with Red Hat Enterprise Linux 4, or 5.
Source: Redhat

- Products Affected By CVE-2008-2377

# Product Type Vendor Product Version Update Edition Language
1 Application GNU Gnutls 2.3.5 Version Details Vulnerabilities
2 Application GNU Gnutls 2.3.6 Version Details Vulnerabilities
3 Application GNU Gnutls 2.3.7 Version Details Vulnerabilities
4 Application GNU Gnutls 2.3.8 Version Details Vulnerabilities
5 Application GNU Gnutls 2.3.9 Version Details Vulnerabilities
6 Application GNU Gnutls 2.4.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
GNU Gnutls 6

- References For CVE-2008-2377

http://www.frsirt.com/english/advisories/2008/2398
VUPEN ADV-2008-2398
http://www.gnu.org/software/gnutls/security.html CONFIRM
http://xforce.iss.net/xforce/xfdb/44486
XF gnutls-gnutlshandshake-code-execution(44486)
http://www.securityfocus.com/bid/30713
BID 30713 GnuTLS 'gnutls_handshake()' Function Remote Denial Of Service Vulnerability Release Date:2008-08-27
http://www.nabble.com/Details-on-the-gnutls_handshake-local-crash-problem--GNUTLS-SA-2008-2--td18205022.html
MLIST [gnutls-devel] 20080630 Details on the gnutls_handshake local crash problem [GNUTLS-SA-2008-2]
https://issues.rpath.com/browse/RPL-2650 CONFIRM
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/2947
MLIST [gnutls-devel] 20080630 GnuTLS 2.4.1
http://secunia.com/advisories/31505
SECUNIA 31505

- Metasploit Modules Related To CVE-2008-2377

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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