Description
WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, does not properly restrict read access to images derived from CANVAS elements, which allows remote attackers to bypass the Same Origin Policy and obtain potentially sensitive image data 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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | webkitgtk +2 | 1.2.6-2.el6_0 | RHSA-2011:0177 |
Advisories 1
- RHSA-2011:0177 Red Hat Security Advisory: webkitgtk security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- MDVSA-2011:039 vendor-advisory
- ADV-2010-2722 vdb-entry
- 43068 third-party-advisory
- USN-1006-1 vendor-advisory
- http://support.apple.com/kb/HT4455
- 41856 third-party-advisory
- ADV-2011-0212 vdb-entry
- https://technet.microsoft.com/library/security/msvr11-002
- ADV-2010-3046 vdb-entry
- oval:org.mitre.oval:def:11221 vdb-entry signature
- ADV-2011-0216 vdb-entry
- 43086 third-party-advisory
- 44206 vdb-entry
- SUSE-SR:2011:002 vendor-advisory
- APPLE-SA-2010-11-18-1 vendor-advisory
- 42314 third-party-advisory
- RHSA-2011:0177 vendor-advisory
- ADV-2011-0552 vdb-entry
- http://code.google.com/p/chromium/issues/detail?id=53001
- http://support.apple.com/kb/HT4456
- http://googlechromereleases.blogspot.com/2010/09/stable-and-beta-channel-updates.html
- APPLE-SA-2010-11-22-1 vendor-advisory