Vulnerability · Published Dec 9, 2020 · Assigned by mozilla
CVE-2020-26963
Medium 4.3
In plain English
A medium-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 0.8% (higher than 58% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.3Medium
Exploit odds (30 days)0.8%top 41.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Repeated calls to the history and location interfaces could have been used to hang the browser. This was addressed by introducing rate-limiting to these API calls. This vulnerability affects Firefox < 83.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 83.0-r0 | ALPINE-CVE-2020-26963 |
| Alpine:v3.21 | firefox | 83.0-r0 | ALPINE-CVE-2020-26963 |
| Alpine:v3.22 | firefox | 83.0-r0 | ALPINE-CVE-2020-26963 |
| Alpine:v3.23 | firefox | 83.0-r0 | ALPINE-CVE-2020-26963 |
| Alpine:v3.21 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26963 |
| Alpine:v3.22 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26963 |
| Alpine:v3.23 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26963 |
| Alpine:v3.24 | librewolf | 83.0-r0 | ALPINE-CVE-2020-26963 |
Affected products (as reported)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1314912 x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-50/ x_refsource_CONFIRM