Vulnerability · Published Jul 9, 2020 · Assigned by mozilla
CVE-2020-12415
Medium 6.5
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 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.3%top 30.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 78.0-r0 | ALPINE-CVE-2020-12415 |
| Alpine:v3.21 | firefox | 78.0-r0 | ALPINE-CVE-2020-12415 |
| Alpine:v3.22 | firefox | 78.0-r0 | ALPINE-CVE-2020-12415 |
| Alpine:v3.23 | firefox | 78.0-r0 | ALPINE-CVE-2020-12415 |
| Alpine:v3.21 | librewolf | 78.0-r0 | ALPINE-CVE-2020-12415 |
| Alpine:v3.22 | librewolf | 78.0-r0 | ALPINE-CVE-2020-12415 |
| Alpine:v3.23 | librewolf | 78.0-r0 | ALPINE-CVE-2020-12415 |
| Alpine:v3.24 | librewolf | 78.0-r0 | ALPINE-CVE-2020-12415 |
Affected products (as reported)
References
- https://www.mozilla.org/security/advisories/mfsa2020-24/ x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1586630 x_refsource_MISC
- openSUSE-SU-2020:0983 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1017 vendor-advisory, x_refsource_SUSE
- GLSA-202007-10 vendor-advisory, x_refsource_GENTOO