Vulnerability · Published Dec 9, 2020 · Assigned by mozilla
CVE-2020-26952
High 8.8
In plain English
A high-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.2%top 32.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially exploitable crash when handling out-of-memory errors. This vulnerability affects Firefox < 83.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 83.0-r0 | ALPINE-CVE-2020-26952 |
| Alpine:v3.21 | firefox | 83.0-r0 | ALPINE-CVE-2020-26952 |
| Alpine:v3.22 | firefox | 83.0-r0 | ALPINE-CVE-2020-26952 |
| Alpine:v3.23 | firefox | 83.0-r0 | ALPINE-CVE-2020-26952 |
| Alpine:v3.21 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26952 |
| Alpine:v3.22 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26952 |
| Alpine:v3.23 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26952 |
| Alpine:v3.24 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26952 |
Affected products (as reported)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1667685 x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-50/ x_refsource_CONFIRM