CVE-2021-29955

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-29955
A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.6 /10

CVSS v2.0 : LOW

V2 Legend

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

Exploitability : 4.9 / Impact : 2.9

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1692972 Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-10/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-11/ Release Notes Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1692972 Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-10/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-11/ Release Notes Vendor Advisory
Configurations

Configuration 1 (hide)

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

21 Nov 2024, 06:02

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1692972 - Permissions Required, Vendor Advisory () https://bugzilla.mozilla.org/show_bug.cgi?id=1692972 - Permissions Required, Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-10/ - Release Notes, Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-10/ - Release Notes, Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-11/ - Release Notes, Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-11/ - Release Notes, Vendor Advisory

30 Jun 2021, 16:48

Type Values Removed Values Added
CWE CWE-74
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 2.6
v3 : 5.3
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1692972 - (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1692972 - Permissions Required, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-11/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-11/ - Release Notes, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-10/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-10/ - Release Notes, Vendor Advisory

24 Jun 2021, 14:20

Type Values Removed Values Added
New CVE
Information

Published : 2021-06-24 14:15

Updated : 2024-11-21 06:02

NVD link : CVE-2021-29955

Mitre link : CVE-2021-29955

CVE.ORG link : CVE-2021-29955

JSON object : View

Products Affected

mozilla

  • firefox_esr
  • firefox
CWE
CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')