Vulnerability · Published Jul 9, 2020 · Assigned by mozilla
CVE-2020-12407
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 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.0%top 37.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible screen. The leaked memory content was visible to the user, but not observable from web content. This vulnerability affects Firefox < 77.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 77.0-r0 | ALPINE-CVE-2020-12407 |
| Alpine:v3.21 | firefox | 77.0-r0 | ALPINE-CVE-2020-12407 |
| Alpine:v3.22 | firefox | 77.0-r0 | ALPINE-CVE-2020-12407 |
| Alpine:v3.23 | firefox | 77.0-r0 | ALPINE-CVE-2020-12407 |
| Alpine:v3.21 | librewolf | 77.0-r0 | ALPINE-CVE-2020-12407 |
| Alpine:v3.22 | librewolf | 77.0-r0 | ALPINE-CVE-2020-12407 |
| Alpine:v3.23 | librewolf | 77.0-r0 | ALPINE-CVE-2020-12407 |
| Alpine:v3.24 | librewolf | 77.0-r0 | ALPINE-CVE-2020-12407 |
Affected products (as reported)
References
- https://www.mozilla.org/security/advisories/mfsa2020-20/ x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1637112 x_refsource_MISC