CVE-2020-12407 — Out-of-bounds Read in Mozilla Firefox

CWE-125 — Out-of-bounds ReadCWE-200 — Sensitive Information Exposure7 documents6 sources
Severity
6.5MEDIUMNVD
OSV4.4
EPSS
0.3%
top 44.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedJul 9
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages5 packages

▶CVEListV5mozilla/firefoxunspecified — 77
▶NVDmozilla/firefox< 77.0
▶Ubuntumozilla/firefox< 77.0.1+build1-0ubuntu0.16.04.1+2
▶mozillamozilla/firefox
▶debiandebian/firefox< firefox 77.0-1 (sid)

🔴Vulnerability Details

3
GHSA
GHSA-c5wv-fh3j-8jqv: Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible scree↗2022-05-24
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OSV
firefox vulnerabilities↗2020-06-04
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OSV
CVE-2020-12407: Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible scree↗2020-06-02
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📋Vendor Advisories

3
Ubuntu
Firefox vulnerabilities↗2020-06-04
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Debian
CVE-2020-12407: firefox - Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would u...↗2020
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Mozilla
Mozilla Foundation Security Advisory 2020-20: CVE-2020-12407↗
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