CVE-2021-43539
Type:
Use After Free
Severity:
Medium
Publication date:
12/08/2021
Last modified:
03/16/2022
Description
Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird
Impact
Access Vector: Through network
Access Complexity: Media
Authentication: Not required to exploit
Impact Type: Partially affects on system integrity + Partially affects on system confidentiality + Partially affects on system availability
Vulnerable software and versions
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
To consult the complete list of products and versions see this page
References to Advisories, Solutions, and Tools
- https://www.mozilla.org/security/advisories/mfsa2021-52/ (Source: MISC)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1739683 (Source: MISC)
- https://www.mozilla.org/security/advisories/mfsa2021-54/ (Source: MISC)
- https://www.mozilla.org/security/advisories/mfsa2021-53/ (Source: MISC)
- DSA-5026 (Source: DEBIAN)
- [debian-lts-announce] 20211229 [SECURITY] [DLA 2863-1] firefox-esr security update (Source: MLIST)
- DSA-5034 (Source: DEBIAN)
- [debian-lts-announce] 20220104 [SECURITY] [DLA 2874-1] thunderbird security update (Source: MLIST)
- GLSA-202202-03 (Source: GENTOO)