CVE-2021-38503

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-38503
The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

10.0 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1729517 Issue Tracking Permissions Required Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://security.gentoo.org/glsa/202208-14 Third Party Advisory
https://www.debian.org/security/2021/dsa-5026 Third Party Advisory
https://www.debian.org/security/2022/dsa-5034 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-48/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-49/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-50/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1729517 Issue Tracking Permissions Required Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://security.gentoo.org/glsa/202208-14 Third Party Advisory
https://www.debian.org/security/2021/dsa-5026 Third Party Advisory
https://www.debian.org/security/2022/dsa-5034 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-48/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-49/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-50/ Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
History

21 Nov 2024, 06:17

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1729517 - Issue Tracking, Permissions Required, Vendor Advisory () https://bugzilla.mozilla.org/show_bug.cgi?id=1729517 - Issue Tracking, Permissions Required, Vendor Advisory
References () https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html - Mailing List, Third Party Advisory
References () https://security.gentoo.org/glsa/202202-03 - Third Party Advisory () https://security.gentoo.org/glsa/202202-03 - Third Party Advisory
References () https://security.gentoo.org/glsa/202208-14 - Third Party Advisory () https://security.gentoo.org/glsa/202208-14 - Third Party Advisory
References () https://www.debian.org/security/2021/dsa-5026 - Third Party Advisory () https://www.debian.org/security/2021/dsa-5026 - Third Party Advisory
References () https://www.debian.org/security/2022/dsa-5034 - Third Party Advisory () https://www.debian.org/security/2022/dsa-5034 - Third Party Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-48/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-48/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-49/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-49/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-50/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-50/ - Vendor Advisory

10 Aug 2022, 20:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202208-14 -

16 Mar 2022, 17:15

Type Values Removed Values Added
CPE cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
References (MLIST) https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html - (MLIST) https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html - Mailing List, Third Party Advisory
References (DEBIAN) https://www.debian.org/security/2022/dsa-5034 - (DEBIAN) https://www.debian.org/security/2022/dsa-5034 - Third Party Advisory
References (MLIST) https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html - (MLIST) https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html - Mailing List, Third Party Advisory
References (GENTOO) https://security.gentoo.org/glsa/202202-03 - (GENTOO) https://security.gentoo.org/glsa/202202-03 - Third Party Advisory

22 Feb 2022, 01:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202202-03 -

04 Jan 2022, 12:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html -

03 Jan 2022, 11:15

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2022/dsa-5034 -

29 Dec 2021, 16:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html -

21 Dec 2021, 19:06

Type Values Removed Values Added
CPE cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
References (DEBIAN) https://www.debian.org/security/2021/dsa-5026 - (DEBIAN) https://www.debian.org/security/2021/dsa-5026 - Third Party Advisory

20 Dec 2021, 00:15

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2021/dsa-5026 -

13 Dec 2021, 19:53

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-49/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-49/ - Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-48/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-48/ - Vendor Advisory
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1729517 - (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1729517 - Issue Tracking, Permissions Required, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-50/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-50/ - Vendor Advisory
CWE CWE-863
CVSS v2 : unknown
v3 : unknown 		v2 : 7.5
v3 : 10.0

08 Dec 2021, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-12-08 22:15

Updated : 2024-11-21 06:17

NVD link : CVE-2021-38503

Mitre link : CVE-2021-38503

CVE.ORG link : CVE-2021-38503

JSON object : View

Products Affected

mozilla

  • firefox_esr
  • firefox
  • thunderbird

debian

  • debian_linux
CWE
CWE-863

Incorrect Authorization