CVE-2022-31747 — Out-of-bounds Read in Mozilla Firefox

CWE-125 — Out-of-bounds ReadCWE-416 — Use After FreeCWE-787 — Out-of-bounds WriteCWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-120 — Classic Buffer Overflow12 documents8 sources
Severity
9.8CRITICALNVD
OSV6.5
EPSS
0.7%
top 28.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird
Timeline
PublishedDec 22

Description

Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages8 packages

▶CVEListV5mozilla/firefoxunspecified — 101
▶NVDmozilla/firefox< 101
▶CVEListV5mozilla/firefox_esrunspecified — 91.10
▶NVDmozilla/firefox_esr< 91.10
▶CVEListV5mozilla/thunderbirdunspecified — 91.10

🔴Vulnerability Details

4
GHSA
GHSA-82mc-w667-c9g9: Mozilla developers Andrew McCreight, Nicolas B↗2022-12-22
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OSV
CVE-2022-31747: Mozilla developers Andrew McCreight, Nicolas B↗2022-12-22
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CVEList
CVE-2022-31747: Mozilla developers Andrew McCreight, Nicolas B↗2022-12-22
▶
OSV
thunderbird vulnerabilities↗2022-07-14
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📋Vendor Advisories

7
Ubuntu
Thunderbird vulnerabilities↗2022-07-14
▶
Ubuntu
Firefox vulnerabilities↗2022-06-13
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Red Hat
Mozilla: Memory safety bugs fixed in Firefox 101 and Firefox ESR 91.10↗2022-05-31
▶
Debian
CVE-2022-31747: firefox - Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing...↗2022
▶
Mozilla
Mozilla Foundation Security Advisory 2022-20: CVE-2022-31747↗
▶
CVE-2022-31747 — Out-of-bounds Read in Mozilla Firefox | cvebase