CVE-2018-18511: Infoleak
A flaw was found in Firefox version 65. Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method. Note: This only affects Firefox 65. Previous versions are unaffected.
Upstream Bug: https://bugzilla.mozilla.org/showbug.cgi?id=1526218
External References: https://www.mozilla.org/en-US/security/advisories/mfsa2019-04/#CVE-2018-18511
Other sources
Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method. Note: This only affects Firefox 65. Previous versions are unaffected.. This vulnerability affects Firefox < 65.0.1.
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/firefoxto a version that resolves this vulnerability.Fixed in 65.0.1 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 60.7 - Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 65.0.1 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 60.7 - Upgrade
Upgrade
debian/firefoxto a version that resolves this vulnerability.Fixed in 159.0-1 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.6.0esr-1
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2018-18511.
What is the severity of CVE-2018-18511?
The severity of CVE-2018-18511 is high with a severity value of 4.3.
Which software versions are affected by CVE-2018-18511?
CVE-2018-18511 affects Firefox versions < 65.0.1 and Thunderbird versions < 60.7.
What is the impact of CVE-2018-18511?
CVE-2018-18511 allows cross-origin images to be read from a canvas element, violating the same-origin policy.
How can I fix CVE-2018-18511?
To fix CVE-2018-18511, update Firefox to version 65.0.1 or later, or update Thunderbird to version 60.7 or later.