Vulnerability CVE-2021-23968: Information

Description

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Severity: MEDIUM (4.3) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

URL: https://nvd.nist.gov/vuln/detail/CVE-2021-23968
Published: Feb. 26, 2021
Modified: May 27, 2022
Error type identifier: CWE-209

Fixed packages

Package name
Branch
Fixed in version
Version from repository
Errata ID
Task #
State
firefoxsisyphus86.0-alt1126.0.1-alt1ALT-PU-2021-1428-1267257Fixed
firefoxp1086.0-alt1118.0.2-alt0.p10.1ALT-PU-2021-1428-1267257Fixed
firefoxp993.0-alt0.p9.1105.0.1-alt0.c9.1ALT-PU-2022-1782-1288073Fixed
firefoxc10f186.0-alt1112.0.2-alt0.p10.1ALT-PU-2021-1428-1267257Fixed
firefoxc9f293.0-alt0.p9.1105.0.1-alt0.c9.1ALT-PU-2021-3368-1288792Fixed
firefoxp1186.0-alt1126.0.1-alt1ALT-PU-2021-1428-1267257Fixed
firefox-esrsisyphus78.8.0-alt1115.11.0-alt1ALT-PU-2021-1396-1266839Fixed
firefox-esrp1091.1.0-alt1115.11.0-alt1ALT-PU-2021-2881-1284980Fixed
firefox-esrp978.8.0-alt0.1.p9102.11.0-alt0.c9.1ALT-PU-2021-1410-1266920Fixed
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-esrp1178.8.0-alt1115.11.0-alt1ALT-PU-2021-1396-1266839Fixed
thunderbirdsisyphus78.8.0-alt1115.9.0-alt1ALT-PU-2021-1399-1266955Fixed
thunderbirdp1078.8.0-alt1115.9.0-alt1ALT-PU-2021-1399-1266955Fixed
thunderbirdp978.8.0-alt0.1.p9102.11.0-alt0.c9.1ALT-PU-2021-1430-1266984Fixed
thunderbirdc10f178.8.0-alt1115.9.0-alt0.c10.1ALT-PU-2021-1399-1266955Fixed
thunderbirdc9f278.8.0-alt0.1.c9102.11.0-alt0.c9.1ALT-PU-2021-1418-1267016Fixed
thunderbirdp1178.8.0-alt1115.9.0-alt1ALT-PU-2021-1399-1266955Fixed

References to Advisories, Solutions, and Tools

Hyperlink
Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1687342
  • Issue Tracking
  • Permissions Required
  • Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-08/
  • Release Notes
  • Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-09/
  • Release Notes
  • Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/
  • Release Notes
  • Vendor Advisory
[debian-lts-announce] 20210301 [SECURITY] [DLA 2578-1] thunderbird security update
  • Mailing List
  • Third Party Advisory
DSA-4866
  • Third Party Advisory
GLSA-202104-09
  • Third Party Advisory
GLSA-202104-10
  • Third Party Advisory

    1. Configuration 1

      cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
      End excliding
      86.0
      cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
      End excliding
      78.8
      cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
      End excliding
      78.8

      Configuration 2

      cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
      cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
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