Description
Off-by-one error in libxml in Apple Safari before 5.0.6 allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow and application crash) via a crafted web site.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libxml2 | 2.7.8.dfsg-5.1 | — |
| Debian 13 | libxml2 | 2.7.8.dfsg-5.1 | — |
| Debian 12 | libxml2 | 2.7.8.dfsg-5.1 | — |
| Debian 6.0 | libxml2 | 2.7.8.dfsg-2+squeeze2 | DSA-2394-1 |
| Debian 5.0 | libxml2 | 2.6.32.dfsg-5+lenny5 | DSA-2394-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | libxml2 +3 | 2.7.6-4.el6 | RHSA-2011:1749 |
| RHEL 6 | mingw32-libxml2 +1 | 2.7.6-6.el6_3 | RHSA-2013:0217 |
| RHEL 5 | libxml2 +2 | 2.6.26-2.1.12.el5_7.2 | RHSA-2012:0017 |
| RHEL 4 | libxml2 +2 | 2.6.16-12.9 | RHSA-2012:0016 |
Advisories 5
- RHSA-2013:0217 Red Hat Security Advisory: mingw32-libxml2 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0017 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0016 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:1749 Red Hat Security Advisory: libxml2 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2394-1 libxml2 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- APPLE-SA-2011-10-12-1 vendor-advisory
- RHSA-2013:0217 vendor-advisory
- RHSA-2011:1749 vendor-advisory
- MDVSA-2011:188 vendor-advisory
- http://support.apple.com/kb/HT4999
- http://support.apple.com/kb/HT5001
- http://support.apple.com/kb/HT4808
- APPLE-SA-2011-07-20-1 vendor-advisory
- APPLE-SA-2011-10-12-2 vendor-advisory
- DSA-2394 vendor-advisory