Vulnerability Details : CVE-2020-15678
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.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2020-15678
Probability of exploitation activity in the next 30 days: 0.32%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 69 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-15678
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-15678
-
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-15678
-
https://www.mozilla.org/security/advisories/mfsa2020-42/
Security Vulnerabilities fixed in Firefox 81 — MozillaRelease Notes;Vendor Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html
[security-announce] openSUSE-SU-2020:1785-1: important: Security updateBroken Link;Mailing List;Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2020-44/
Security Vulnerabilities fixed in Thunderbird 78.3 — MozillaRelease Notes;Vendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1660211
Access DeniedIssue Tracking;Permissions Required;Vendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2020-43/
Security Vulnerabilities fixed in Firefox ESR 78.3 — MozillaRelease Notes;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html
[SECURITY] [DLA 2408-1] thunderbird security updateMailing List;Third Party Advisory
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https://security.gentoo.org/glsa/202010-02
Mozilla Firefox, Mozilla Thunderbird: Multiple vulnerabilities (GLSA 202010-02) — Gentoo securityThird Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html
[security-announce] openSUSE-SU-2020:1780-1: important: Security updateBroken Link;Mailing List;Third Party Advisory
-
https://www.debian.org/security/2020/dsa-4770
Debian -- Security Information -- DSA-4770-1 thunderbirdThird Party Advisory
Products affected by CVE-2020-15678
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*