CVE-2020-12387: Use After Free
First published: Tue May 05 2020(Updated: )
A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox ESR | <68.8 | 68.8 |
| Mozilla Thunderbird | <68.8 | 68.8 |
| Mozilla Firefox | <76 | 76 |
| Mozilla Firefox | <76.0 | |
| Mozilla Firefox ESR | <68.8.0 | |
| Mozilla Thunderbird | <68.8.0 | |
| debian/firefox | 130.0-2 | |
| debian/firefox-esr | 115.14.0esr-1~deb11u1 115.15.0esr-1~deb11u1 115.14.0esr-1~deb12u1 115.15.0esr-1~deb12u1 115.15.0esr-1 | |
| debian/thunderbird | 1:115.12.0-1~deb11u1 1:115.15.0-1~deb11u1 1:115.12.0-1~deb12u1 1:115.15.0-1~deb12u1 1:128.1.1esr-1 1:128.2.0esr-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1545345
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-17/
- https://www.mozilla.org/security/advisories/mfsa2020-16/
- https://www.mozilla.org/security/advisories/mfsa2020-17/
- https://www.mozilla.org/security/advisories/mfsa2020-18/
- https://usn.ubuntu.com/4373-1/
- https://security.gentoo.org/glsa/202005-03
- https://security.gentoo.org/glsa/202005-04
- https://launchpad.net/bugs/cve/CVE-2020-12387
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-17/#CVE-2020-12387
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-12387
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-12387
- https://security-tracker.debian.org/tracker/CVE-2020-12387
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12387
- https://nvd.nist.gov/vuln/detail/CVE-2020-12387
- https://ubuntu.com/security/CVE-2020-12387
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- collector/mozilla-advisory
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/weakness
- source/Mozilla
- agent/software-canonical-lookup
- agent/severity
- agent/software-canonical-lookup-request
- collector/nvd-cve
- source/NVD
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/security-tracker-debian
- source/Debian
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/tags
- agent/softwarecombine
- agent/event
- agent/description
- agent/trending
- vendor/mozilla
- canonical/mozilla firefox esr
- canonical/mozilla thunderbird
- canonical/mozilla firefox
- package-manager/debian