Description
The ucnv_io_getConverterName function in common/ucnv_io.cpp in International Components for Unicode (ICU), as used in Google Chrome before 44.0.2403.89, mishandles converter names with initial x- substrings, which allows remote attackers to cause a denial of service (read of uninitialized memory) or possibly have unspecified other impact via a crafted file.
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 | 55.1-5 | — |
| Debian 13 | icu | 55.1-5 | — |
| Debian 12 | icu | 55.1-5 | — |
| Debian 8 | chromium-browser | 44.0.2403.89-1~deb8u1 | DSA-3315-1 |
| Debian 8 | icu | 52.1-8+deb8u3 | DSA-3360-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | chromium-browser | 44.0.2403.89-0ubuntu0.14.04.1.1095 | — |
| Ubuntu 14.04 LTS | icu | 52.1-3ubuntu0.4 | USN-2740-1 |
| Ubuntu 14.04 LTS | oxide-qt | 1.8.4-0ubuntu0.14.04.2 | USN-2677-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | chromium-browser | 44.0.2403.89-1.el6 | RHSA-2015:1499 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | chromium | 55.0.2883.75-3.1 | openSUSE-SU-2024:12948-1, openSUSE-SU-2024:10171-1 |
Advisories 7
- RHSA-2015:1499 Red Hat Security Advisory: chromium-browser security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-2677-1 oxide-qt vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-2740-1 icu vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3360-1 icu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3315-1 chromium-browser - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10171-1 chromedriver-55.0.2883.75-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12948-1 ungoogled-chromium-113.0.5672.92-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://codereview.chromium.org/1157143002/
- RHSA-2015:1499 vendor-advisory
- openSUSE-SU-2015:1287 vendor-advisory
- 1033031 vdb-entry
- https://code.google.com/p/chromium/issues/detail?id=444573
- DSA-3360 vendor-advisory
- USN-2740-1 vendor-advisory
- GLSA-201603-09 vendor-advisory
- 75973 vdb-entry
- http://googlechromereleases.blogspot.com/2015/07/stable-channel-update_21.html
- https://chromium.googlesource.com/chromium/deps/icu/+/f1ad7f9ba957571dc692ea3e187612c685615e19
- DSA-3315 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html