vulnerability
MFSA2017-12 Firefox: Security vulnerabilities fixed in Firefox ESR 52.1 (CVE-2017-5440)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Apr 19, 2017 | Apr 20, 2017 | Mar 27, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Apr 19, 2017
Added
Apr 20, 2017
Modified
Mar 27, 2026
Description
A use-after-free vulnerability during XSLT processing due to a failure to propagate error conditions during matching while evaluating context, leading to objects being used when they no longer exist. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
Solution
mozilla-firefox-esr-upgrade-52_1
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