Vulnerability CVE-2021-29986: Information

Description

A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

Severity: HIGH (8.1) Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

URL: https://nvd.nist.gov/vuln/detail/CVE-2021-29986
Published: Aug. 17, 2021
Modified: Dec. 9, 2022
Error type identifier: CWE-362

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-esrsisyphus78.13.0-alt1115.11.0-alt1ALT-PU-2021-2479-1282366Fixed
firefox-esrp1078.13.0-alt1115.11.0-alt1ALT-PU-2021-2527-1282376Fixed
firefox-esrp978.13.0-alt0.p9.1102.11.0-alt0.c9.1ALT-PU-2021-2624-1282377Fixed
firefox-esrc10f178.13.0-alt1115.9.1-alt0.c10.1ALT-PU-2021-2527-1282376Fixed
firefox-esrc9f278.13.0-alt0.c9.1102.12.0-alt0.c9.1ALT-PU-2021-2491-1282380Fixed
firefox-esrp1178.13.0-alt1115.11.0-alt1ALT-PU-2021-2479-1282366Fixed
thunderbirdsisyphus78.13.0-alt1115.9.0-alt1ALT-PU-2021-2481-1282378Fixed
thunderbirdp1078.13.0-alt1115.9.0-alt1ALT-PU-2021-2504-1282394Fixed
thunderbirdp978.13.0-alt0.p9.1102.11.0-alt0.c9.1ALT-PU-2021-2607-1282397Fixed
thunderbirdc10f178.13.0-alt1115.9.0-alt0.c10.1ALT-PU-2021-2504-1282394Fixed
thunderbirdc9f278.13.0-alt0.c9.1102.11.0-alt0.c9.1ALT-PU-2021-2501-1282405Fixed
thunderbirdp1178.13.0-alt1115.9.0-alt1ALT-PU-2021-2481-1282378Fixed

References to Advisories, Solutions, and Tools

Hyperlink
Resource
https://www.mozilla.org/security/advisories/mfsa2021-34/
  • Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-33/
  • Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-36/
  • Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-35/
  • Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1696138
  • Exploit
  • Issue Tracking
  • Vendor Advisory
GLSA-202202-03
  • Third Party Advisory
GLSA-202208-14
  • Third Party Advisory

    1. Configuration 1

      cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
      cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
      cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
      Running on/with:
      cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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