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Last updated: 9/2/2014 11:15:56 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2008-1678

Original release date: 07/10/2008
Last revised: 04/20/2011
Source: US-CERT/NIST

Overview

Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to cause a denial of service (memory consumption) via multiple calls, as demonstrated by initial SSL client handshakes to the Apache HTTP Server mod_ssl that specify a compression algorithm.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (05/28/2009)
Not vulnerable. This issue did not affect the versions of mod_ssl or httpd as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and 5 prior to 5.3. In Red Hat Enterprise Linux 5.3, OpenSSL packages were rebased to upstream version 0.9.8e via RHBA-2009:0181 (https://rhn.redhat.com/errata/RHBA-2009-0181.html), introducing this problem in Red Hat Enterprise Linux 5. Updated httpd packages were released via: https://rhn.redhat.com/errata/RHSA-2009-1075.html

References to Advisories, Solutions, and Tools

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External Source: XF
Name: openssl-libssl-dos(43948)
External Source: MANDRIVA
Name: MDVSA-2009:124
External Source: CONFIRM
Name: https://kb.bluecoat.com/index?page=content&id=SA50
External Source: SECUNIA
Name: 38761
External Source: SECUNIA
Name: 34219
External Source: GENTOO
Name: GLSA-200807-06
External Source: SECUNIA
Name: 42724
External Source: CONFIRM
Name: http://support.apple.com/kb/HT3216
External Source: SECUNIA
Name: 32222
External Source: CONFIRM
Name: https://issues.apache.org/bugzilla/show_bug.cgi?id=44975
External Source: OVAL
Name: oval:org.mitre.oval:def:9754
External Source: APPLE
Name: APPLE-SA-2008-10-09
External Source: REDHAT
Name: RHSA-2009:1075
External Source: BID
Name: 31692
External Source: SECUNIA
Name: 35264
External Source: MLIST
Name: [openssl-dev] 20080512 possible memory leak in zlib compression
External Source: SREASON
Name: 3981
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=447268
External Source: SUSE
Name: SUSE-SR:2008:024
External Source: UBUNTU
Name: USN-731-1
External Source: SECUNIA
Name: 31416
External Source: SECUNIA
Name: 42733
External Source: CONFIRM
Name: http://svn.apache.org/viewvc?view=rev&revision=654119
External Source: SLACKWARE
Name: SSA:2010-060-02
External Source: SECUNIA
Name: 44183
External Source: CONFIRM
Name: https://bugs.edge.launchpad.net/bugs/224945
External Source: FEDORA
Name: FEDORA-2008-6393
External Source: SECUNIA
Name: 31026
Type: Advisory
External Source: CONFIRM
Name: http://bugs.gentoo.org/show_bug.cgi?id=222643
External Source: BID
Name: 31681
External Source: VUPEN
Name: ADV-2008-2780
External Source: CONFIRM
Name: https://bugs.edge.launchpad.net/bugs/186339

References to Check Content

Identifier: oval:org.mitre.oval:def:9754
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)
  • Resource Management Errors (CWE-399)