CVE-2020-15678 — Use After Free in Mozilla Firefox

CWE-416 — Use After Free11 documents9 sources
Severity
8.8HIGHNVD
EPSS
0.9%
top 24.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird+2 more
Timeline
PublishedOct 1
Latest updateMay 24

Description

When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages8 packages

▶CVEListV5mozilla/firefoxunspecified — 81
▶NVDmozilla/firefox< 81.0
▶CVEListV5mozilla/firefox_esrunspecified — 78.3
▶CVEListV5mozilla/thunderbirdunspecified — 78.3

Also affects: Debian Linux 10.0, 9.0

🔴Vulnerability Details

3
GHSA
GHSA-4rfx-gjvx-jp3h: When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free↗2022-05-24
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CVEList
CVE-2020-15678: When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free↗2020-10-01
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OSV
CVE-2020-15678: When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free↗2020-10-01
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📋Vendor Advisories

6
Ubuntu
Firefox vulnerabilities↗2020-09-28
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Red Hat
Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario↗2020-09-22
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Debian
CVE-2020-15678: firefox - When recursing through graphical layers while scrolling, an iterator may have be...↗2020
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Mozilla
Mozilla Foundation Security Advisory 2020-44: CVE-2020-15678↗
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Mozilla
Mozilla Foundation Security Advisory 2020-43: CVE-2020-15678↗
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💬Community

1
Bugzilla
CVE-2020-15678 Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario↗2020-09-22
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CVE-2020-15678 — Use After Free in Mozilla Firefox | cvebase