Vulnerability · Published Oct 1, 2020 · Assigned by mozilla
CVE-2020-15678
High 8.8
In plain English
A high-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 1.9% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.9%top 20.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.21 | firefox | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.22 | firefox | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.23 | firefox | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.20 | firefox-esr | 78.3.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.21 | firefox-esr | 78.3.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.22 | firefox-esr | 78.3.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.23 | firefox-esr | 78.3.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.21 | librewolf | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.22 | librewolf | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.23 | librewolf | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Alpine:v3.24 | librewolf | 81.0-r0 | ALPINE-CVE-2020-15678 |
| Debian:12 | firefox-esr | 78.3.0esr-1 | DEBIAN-CVE-2020-15678 |
| Debian:13 | firefox-esr | 78.3.0esr-1 | DEBIAN-CVE-2020-15678 |
| Debian:14 | firefox-esr | 78.3.0esr-1 | DEBIAN-CVE-2020-15678 |
| Debian:12 | thunderbird | 1:78.3.1-1 | DEBIAN-CVE-2020-15678 |
| Debian:13 | thunderbird | 1:78.3.1-1 | DEBIAN-CVE-2020-15678 |
| Debian:14 | thunderbird | 1:78.3.1-1 | DEBIAN-CVE-2020-15678 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 81 |
| Mozilla | Thunderbird | unspecified – before 78.3 |
| Mozilla | Firefox ESR | unspecified – before 78.3 |
References
- https://www.mozilla.org/security/advisories/mfsa2020-43/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-44/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-42/ x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1660211 x_refsource_MISC
- DSA-4770 vendor-advisory, x_refsource_DEBIAN
- [debian-lts-announce] 20201016 [SECURITY] [DLA 2408-1] thunderbird security update mailing-list, x_refsource_MLIST
- GLSA-202010-02 vendor-advisory, x_refsource_GENTOO
- openSUSE-SU-2020:1780 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1785 vendor-advisory, x_refsource_SUSE