Vulnerability Details : CVE-2021-43537
An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Products affected by CVE-2021-43537
- 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:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43537
0.46%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43537
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-43537
-
The product does not correctly convert an object, resource, or structure from one type to a different type.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43537
-
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
[SECURITY] [DLA 2874-1] thunderbird security updateMailing List;Third Party Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1738237
Access DeniedIssue Tracking;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
[SECURITY] [DLA 2863-1] firefox-esr security updateMailing List;Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2021-53/
Security Vulnerabilities fixed in Firefox ESR 91.4.0 — MozillaVendor Advisory
-
https://www.debian.org/security/2021/dsa-5026
Debian -- Security Information -- DSA-5026-1 firefox-esrMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202202-03
Mozilla Firefox: Multiple vulnerabilities (GLSA 202202-03) — Gentoo securityThird Party Advisory
-
https://www.debian.org/security/2022/dsa-5034
Debian -- Security Information -- DSA-5034-1 thunderbirdMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202208-14
Mozilla Thunderbird: Multiple Vulnerabilities (GLSA 202208-14) — Gentoo securityThird Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2021-54/
Security Vulnerabilities fixed in Thunderbird 91.4.0 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2021-52/
Security Vulnerabilities fixed in Firefox 95 — MozillaVendor Advisory
Jump to