Vulnerability CVE-2021-29982: Information

Description

Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91.

Severity: MEDIUM (6.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

URL: https://nvd.nist.gov/vuln/detail/CVE-2021-29982
Published: Aug. 17, 2021
Modified: March 16, 2022
Error type identifier: CWE-772

Fixed packages

Package name
Branch
Fixed in version
Version from repository
Errata ID
Task #
State
firefoxsisyphus91.0-alt1127.0-alt1ALT-PU-2021-2488-1282383Fixed
firefoxp1092.0-alt1118.0.2-alt0.p10.1ALT-PU-2021-2849-1284964Fixed
firefoxp993.0-alt0.p9.1105.0.1-alt0.c9.1ALT-PU-2022-1782-1288073Fixed
firefoxc10f192.0-alt1112.0.2-alt0.p10.1ALT-PU-2021-2849-1284964Fixed
firefoxc9f293.0-alt0.p9.1105.0.1-alt0.c9.1ALT-PU-2021-3368-1288792Fixed
firefoxp1191.0-alt1126.0.1-alt1ALT-PU-2021-2488-1282383Fixed
firefox-esrsisyphus91.0.1-alt1115.11.0-alt1ALT-PU-2021-2725-1284617Fixed
firefox-esrp1091.1.0-alt1115.11.0-alt1ALT-PU-2021-2881-1284980Fixed
firefox-esrp991.7.0-alt0.p9.1102.11.0-alt0.c9.1ALT-PU-2022-1781-1288073Fixed
firefox-esrc10f191.1.0-alt1115.9.1-alt0.c10.1ALT-PU-2021-2881-1284980Fixed
firefox-esrc9f291.3.0-alt1.c9.1102.12.0-alt0.c9.1ALT-PU-2021-3369-1288792Fixed
firefox-esrp1191.0.1-alt1115.11.0-alt1ALT-PU-2021-2725-1284617Fixed
thunderbirdsisyphus91.0.2-alt1115.9.0-alt1ALT-PU-2021-2636-1283729Fixed
thunderbirdp1091.0.3-alt1115.9.0-alt1ALT-PU-2021-2718-1283946Fixed
thunderbirdp991.6.0-alt0.p9.1102.11.0-alt0.c9.1ALT-PU-2022-1783-1288073Fixed
thunderbirdc10f191.0.3-alt1115.9.0-alt0.c10.1ALT-PU-2021-2718-1283946Fixed
thunderbirdc9f291.3.0-alt0.c9.1102.11.0-alt0.c9.1ALT-PU-2021-3370-1288792Fixed
thunderbirdp1191.0.2-alt1115.9.0-alt1ALT-PU-2021-2636-1283729Fixed

References to Advisories, Solutions, and Tools

Hyperlink
Resource
https://www.mozilla.org/security/advisories/mfsa2021-33/
  • Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-36/
  • Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1715318
  • Exploit
  • Issue Tracking
  • Vendor Advisory
GLSA-202202-03
  • Third Party Advisory

    1. Configuration 1

      cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
      End excliding
      91.0
      cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
      End excliding
      91.0
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