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Fencer Intel
medium 6.8

CVE-2012-2871 json

libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89, does not properly support a cast of an unspecified variable du…

published 2012-08-31 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-2851

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89, does not properly support a cast of an unspecified variable during handling of XSL transforms, which allows remote attackers to cause a denial of service or possibly have unknown other impact via a crafted document, related to the _xmlNs data structure in include/libxml/tree.h.

Patch / fix

  • libxslt Debian 14, Debian 13, Debian 12 1.1.26-14

debian advisories DEBIAN-CVE-2012-2871

  • libxslt RHEL 5 1.1.17-4.el5_8.3
  • libxslt RHEL 6 1.1.26-2.el6_3.1
  • libxslt-python RHEL 5 1.1.17-4.el5_8.3
  • libxslt-python RHEL 6 1.1.26-2.el6_3.1

red hat advisories RHSA-2012:1265

  • chromium openSUSE Tumbleweed 55.0.2883.75-3.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1

opensuse advisories openSUSE-SU-2024:10171-1openSUSE-SU-2024:12948-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-2871 updated cvss 6.8

libxslt: Heap-buffer overflow caused by bad cast in XSL transforms

  • Red Hat Enterprise Linux (v. 5 server) libxslt 1.1.17-4.el5_8.3, libxslt-python 1.1.17-4.el5_8.3 Red Hat Enterprise Linux Desktop (v. 5 client) libxslt 1.1.17-4.el5_8.3, libxslt-python 1.1.17-4.el5_8.3 Red Hat Enterprise Linux Desktop (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1 Red Hat Enterprise Linux Desktop Optional (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1 Red Hat Enterprise Linux HPC Node (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1
    +5 more products
    Red Hat Enterprise Linux Server (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1 Red Hat Enterprise Linux Server Optional (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1 Red Hat Enterprise Linux Workstation (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1 Red Hat Enterprise Linux Workstation Optional (v. 6) libxslt 1.1.26-2.el6_3.1, libxslt-python 1.1.26-2.el6_3.1 Red Hat RHEL Desktop Workstation (v. 5 client) libxslt 1.1.17-4.el5_8.3, libxslt-python 1.1.17-4.el5_8.3
    fixed: vendor fix RHSA-2012:1265

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.38% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.