Description
The International Components for Unicode (ICU) library in Apple Mac OS X before 10.5.3, Red Hat Enterprise Linux 5, and other operating systems omits some invalid character sequences during conversion of some character encodings, which might allow remote attackers to conduct cross-site scripting (XSS) attacks.
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 | icu | 4.0.1-1 | — |
| Debian 13 | icu | 4.0.1-1 | — |
| Debian 12 | icu | 4.0.1-1 | — |
| Debian 5.0 | icu | 3.8.1-3+lenny1 | DSA-1762-1 |
| Debian 4.0 | icu | 3.6-2etch2 | DSA-1762-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | icu +3 | 3.6-5.11.2 | RHSA-2009:0296 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | icu | 69.1-2.3 | openSUSE-SU-2024:10859-1 |
Advisories 3
- RHSA-2009:0296 Red Hat Security Advisory: icu security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1762-1 icu - cross site scripting Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10859-1 icu-69.1-2.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- RHSA-2009:0296 vendor-advisory
- macosx-icu-security-bypass(42717) vdb-entry
- 34777 third-party-advisory
- 29488 vdb-entry
- 1020139 vdb-entry
- TA08-150A third-party-advisory
- 30430 third-party-advisory
- APPLE-SA-2008-05-28 vendor-advisory
- DSA-1762 vendor-advisory
- 34290 third-party-advisory
- oval:org.mitre.oval:def:10824 vdb-entry signature
- ADV-2008-1697 vdb-entry
- USN-747-1 vendor-advisory
- 29412 vdb-entry
- http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0064