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Vulnerability Details : CVE-2011-2896

The LZW decompressor in the LWZReadByte function in giftoppm.c in the David Koblas GIF decoder in PBMPLUS, as used in the gif_read_lzw function in filter/image-gif.c in CUPS before 1.4.7, the LZWReadByte function in plug-ins/common/file-gif-load.c in GIMP 2.6.11 and earlier, the LZWReadByte function in img/gifread.c in XPCE in SWI-Prolog 5.10.4 and earlier, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows remote attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2895.
Publish Date : 2011-08-19 Last Update Date : 2022-02-07
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
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) Execute CodeOverflow
CWE ID 787

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
AV:N/AC:H/Au:N/C:P/I:P/A:P 2011-06-17 2011-08-10
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-2896 unix
DEPRECATED: ELSA-2012-0302 -- cups security and bug fix update (low) oval:org.mitre.oval:def:27680 unix
DEPRECATED: ELSA-2012-1180 -- gimp security update (moderate) oval:org.mitre.oval:def:27838 unix
DEPRECATED: ELSA-2012-1181 -- gimp security update (moderate) oval:org.mitre.oval:def:27752 unix
DSA-2354-1 cups -- several oval:org.mitre.oval:def:15349 unix
DSA-2426-1 gimp -- several oval:org.mitre.oval:def:15350 unix
ELSA-2011-1635 -- cups security and bug fix update (low) oval:org.mitre.oval:def:28007 unix
ELSA-2012:0302: cups security and bug fix update (Low) oval:org.mitre.oval:def:23080 unix
ELSA-2012:1180: gimp security update (Moderate) oval:org.mitre.oval:def:23466 unix
ELSA-2012:1181: gimp security update (Moderate) oval:org.mitre.oval:def:23104 unix
RHSA-2011:1635 -- cups security and bug fix update (Low) oval:org.mitre.oval:def:27046 unix
RHSA-2011:1635: cups security and bug fix update (Low) oval:com.redhat.rhsa:def:20111635 unix
RHSA-2012:0302: cups security and bug fix update (Low) oval:com.redhat.rhsa:def:20120302 unix
RHSA-2012:0302: cups security and bug fix update (Low) oval:org.mitre.oval:def:21320 unix
RHSA-2012:1180: gimp security update (Moderate) oval:org.mitre.oval:def:21603 unix
RHSA-2012:1180: gimp security update (Moderate) oval:com.redhat.rhsa:def:20121180 unix
RHSA-2012:1181: gimp security update (Moderate) oval:com.redhat.rhsa:def:20121181 unix
RHSA-2012:1181: gimp security update (Moderate) oval:org.mitre.oval:def:20952 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-2011-2896

# Product Type Vendor Product Version Update Edition Language
1 Application Apple Cups * * * * Version Details Vulnerabilities
2 Application Gimp Gimp * * * * Version Details Vulnerabilities
3 Application Swi-prolog Swi-prolog * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apple Cups 1
Gimp Gimp 1
Swi-prolog Swi-prolog 1

- References For CVE-2011-2896
REDHAT RHSA-2012:1181
GENTOO GLSA-201209-23
REDHAT RHSA-2012:1180
REDHAT RHSA-2011:1635
FEDORA FEDORA-2011-11318
MLIST [oss-security] 20110810 LZW decompression issues
FEDORA FEDORA-2011-11305
SECTRACK 1025929
FEDORA FEDORA-2011-11229
FEDORA FEDORA-2011-11173
BID 49148 GIMP GIF Image Parsing 'LZWReadByte()' Buffer Overflow Vulnerability Release Date:2013-02-19 CONFIRM

- Metasploit Modules Related To CVE-2011-2896

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

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