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TI-2011-02549 Aliases CVE-2011-2896GHSA-46mw-xwc9-f8hc

The LZW decompressor in the LWZReadByte function in giftoppm.c in the David Koblas GIF…

Priority LOW 37CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Partial Red Hat: 12 fixed, 2 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.11993 96th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 12 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:swi-prolog:swi-prolog:*:*:*:*:*:*:*:*up to 5.10.4VulnerableSwi-prolog
cpe:2.3:a:apple:cups:*:*:*:*:*:*:*:*up to 1.4.6VulnerableApple
cpe:2.3:a:gimp:gimp:*:*:*:*:*:*:*:*up to 2.6.11VulnerableGIMP
  • cpe:2.3:a:swi-prolog:swi-prolog:*:*:*:*:*:*:*:* Versions up to 5.10.4 Vulnerable ·Swi-prolog
  • cpe:2.3:a:apple:cups:*:*:*:*:*:*:*:* Versions up to 1.4.6 Vulnerable ·Apple
  • cpe:2.3:a:gimp:gimp:*:*:*:*:*:*:*:* Versions up to 2.6.11 Vulnerable ·GIMP

Remediation

Red Hat 4 advisories

  • RHSA-2012:1181 Released 2012-08-20 · Red Hat rating Moderate
    gimp security update
    • RHEL Desktop Workstation (v. 5 client) gimp-2:2.2.13-2.0.7.el5_8.5, gimp-devel-2:2.2.13-2.0.7.el5_8.5, gimp-devel-2:2.2.13-2.0.7.el5_8.5.i386
    • Red Hat Enterprise Linux (v. 5 server) gimp-2:2.2.13-2.0.7.el5_8.5, gimp-2:2.2.13-2.0.7.el5_8.5.i386, gimp-2:2.2.13-2.0.7.el5_8.5.ia64 +9
    • Red Hat Enterprise Linux Desktop (v. 5 client) gimp-2:2.2.13-2.0.7.el5_8.5, gimp-2:2.2.13-2.0.7.el5_8.5.i386, gimp-libs-2:2.2.13-2.0.7.el5_8.5 +1
  • RHSA-2012:1180 Released 2012-08-20 · Red Hat rating Moderate
    gimp security update
    • Red Hat Enterprise Linux Desktop (v. 6) gimp-2:2.6.9-4.el6_3.3, gimp-help-browser-2:2.6.9-4.el6_3.3, gimp-libs-2:2.6.9-4.el6_3.3
    • Red Hat Enterprise Linux Desktop Optional (v. 6) gimp-2:2.6.9-4.el6_3.3, gimp-devel-2:2.6.9-4.el6_3.3, gimp-devel-tools-2:2.6.9-4.el6_3.3 +1
    • Red Hat Enterprise Linux Server (v. 6) gimp-2:2.6.9-4.el6_3.3, gimp-help-browser-2:2.6.9-4.el6_3.3, gimp-libs-2:2.6.9-4.el6_3.3
    • Red Hat Enterprise Linux Server Optional (v. 6) gimp-2:2.6.9-4.el6_3.3, gimp-devel-2:2.6.9-4.el6_3.3, gimp-devel-2:2.6.9-4.el6_3.3.ppc +3
    • Red Hat Enterprise Linux Workstation (v. 6) gimp-2:2.6.9-4.el6_3.3, gimp-help-browser-2:2.6.9-4.el6_3.3, gimp-libs-2:2.6.9-4.el6_3.3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) gimp-2:2.6.9-4.el6_3.3, gimp-devel-2:2.6.9-4.el6_3.3, gimp-devel-tools-2:2.6.9-4.el6_3.3 +1
  • RHSA-2012:0302 Released 2012-02-21 · Red Hat rating Low
    cups security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) cups-1:1.3.7-30.el5, cups-1:1.3.7-30.el5.i386, cups-1:1.3.7-30.el5.ia64 +13
    • Red Hat Enterprise Linux Desktop (v. 5 client) cups-1:1.3.7-30.el5, cups-1:1.3.7-30.el5.i386, cups-libs-1:1.3.7-30.el5 +3
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) cups-1:1.3.7-30.el5, cups-devel-1:1.3.7-30.el5, cups-devel-1:1.3.7-30.el5.i386
Show 1 more Red Hat advisories
  • RHSA-2011:1635 Released 2011-12-05 · Red Hat rating Low
    cups security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) cups-1:1.4.2-44.el6, cups-libs-1:1.4.2-44.el6, cups-lpd-1:1.4.2-44.el6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) cups-1:1.4.2-44.el6, cups-devel-1:1.4.2-44.el6, cups-php-1:1.4.2-44.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) cups-1:1.4.2-44.el6, cups-libs-1:1.4.2-44.el6, cups-lpd-1:1.4.2-44.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) cups-1:1.4.2-44.el6, cups-devel-1:1.4.2-44.el6, cups-php-1:1.4.2-44.el6
    • Red Hat Enterprise Linux Server (v. 6) cups-1:1.4.2-44.el6, cups-devel-1:1.4.2-44.el6, cups-devel-1:1.4.2-44.el6.ppc +3
    • Red Hat Enterprise Linux Server Optional (v. 6) cups-1:1.4.2-44.el6, cups-php-1:1.4.2-44.el6
    • Red Hat Enterprise Linux Workstation (v. 6) cups-1:1.4.2-44.el6, cups-devel-1:1.4.2-44.el6, cups-libs-1:1.4.2-44.el6 +1
    • Red Hat Enterprise Linux Workstation Optional (v. 6) cups-1:1.4.2-44.el6, cups-php-1:1.4.2-44.el6

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 4AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
RHEL Desktop Workstation (v. 5 client)Fixed RHSA-2012:1181
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2012:0302, RHSA-2012:1181
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2012:0302, RHSA-2012:1181
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2011:1635, RHSA-2012:1180
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2011:1635, RHSA-2012:1180
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2012:0302
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2011:1635
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2011:1635
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1635, RHSA-2012:1180
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2011:1635, RHSA-2012:1180
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2011:1635, RHSA-2012:1180
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2011:1635, RHSA-2012:1180
Not affected: 3 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-2896
  2. 2026-10-03 Alias added: GHSA-46mw-xwc9-f8hc

References

Patch 4

Advisory 18

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences