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Vulnerability Details : CVE-2008-1678

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.
Publish Date : 2008-07-10 Last Update Date : 2017-09-28
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 399

- Vendor Statements

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 (, introducing this problem in Red Hat Enterprise Linux 5. Updated httpd packages were released via:
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
AV:N/AC:L/Au:N/C:N/I:N/A:P 2008-05-12 2008-04-30
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2008-1678 unix
ELSA-2009:1075: httpd security update (Moderate) oval:org.mitre.oval:def:22777 unix
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... oval:org.mitre.oval:def:9754 unix
RHSA-2009:1075 -- httpd security update (Moderate) oval:org.mitre.oval:def:28800 unix
RHSA-2009:1075: httpd security update (Moderate) oval:com.redhat.rhsa:def:20091075 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2008-1678

# Product Type Vendor Product Version Update Edition Language
1 Application Openssl Openssl 0.9.8f Version Details Vulnerabilities
2 Application Openssl Openssl 0.9.8g Version Details Vulnerabilities
3 Application Openssl Openssl 0.9.8h Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openssl Openssl 3

- References For CVE-2008-1678
XF openssl-libssl-dos(43948) CONFIRM CONFIRM CONFIRM
VUPEN ADV-2008-2780
BID 31681 RETIRED: Apple Mac OS X 2008-007 Multiple Security Vulnerabilities Release Date:2009-03-24
BID 31692 OpenSSL 'zlib' Compression Memory Leak Remote Denial of Service Vulnerability Release Date:2010-06-22
SLACKWARE SSA:2010-060-02
MLIST [openssl-dev] 20080512 possible memory leak in zlib compression
GENTOO GLSA-200807-06
APPLE APPLE-SA-2008-10-09

- Metasploit Modules Related To CVE-2008-1678

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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