CVE-2021-29976
First published: Tue Jul 13 2021(Updated: )
Mozilla developers Emil Ghitta, Tyson Smith, Valentin Gosu, Olli Pettay, and Randell Jesup reported memory safety bugs present in Firefox 89 and Firefox ESR 78.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox ESR | <78.12 | 78.12 |
| <90 | 90 | |
| <78.12 | 78.12 | |
| <78.12 | 78.12 | |
| Mozilla Firefox | <90.0 | |
| Mozilla Firefox ESR | <78.12 | |
| Mozilla Thunderbird | <78.12 | |
| debian/firefox | 118.0.2-1 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.3.1esr-1~deb10u1 102.15.0esr-1~deb11u1 115.3.1esr-1~deb11u1 102.15.1esr-1~deb12u1 115.3.0esr-1~deb12u1 115.3.0esr-1 | |
| debian/thunderbird | 1:91.12.0-1~deb10u1 1:115.3.1-1~deb10u1 1:102.13.1-1~deb11u1 1:115.3.1-1~deb11u1 1:102.15.1-1~deb12u1 1:115.3.1-1~deb12u1 1:115.3.1-1 |
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Reference Links
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1700895%2C1703334%2C1706910%2C1711576%2C1714391
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-29/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-30/
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14
- https://www.mozilla.org/security/advisories/mfsa2021-28/
- https://www.mozilla.org/security/advisories/mfsa2021-29/
- https://www.mozilla.org/security/advisories/mfsa2021-30/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/#CVE-2021-29976
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-29/#CVE-2021-29976
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-30/#CVE-2021-29976
- https://security-tracker.debian.org/tracker/CVE-2021-29976
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- collector/mozilla-advisory
- collector/security-tracker-debian
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- agent/softwarecombine
- source/Mozilla
- agent/software-canonical-lookup
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/event
- agent/description
- agent/software-canonical-lookup-request
- agent/tags
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- vendor/mozilla
- canonical/mozilla firefox esr
- package-manager/debian
- canonical/mozilla thunderbird
- canonical/mozilla firefox