CVE-2020-15678: Use After Free
First published: Tue Sep 22 2020(Updated: )
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.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/firefox | 118.0.2-1 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.3.1esr-1~deb10u1 102.15.0esr-1~deb11u1 115.3.1esr-1~deb11u1 102.15.1esr-1~deb12u1 115.3.0esr-1~deb12u1 115.3.0esr-1 | |
| debian/thunderbird | 1:91.12.0-1~deb10u1 1:115.3.1-1~deb10u1 1:102.13.1-1~deb11u1 1:115.3.1-1~deb11u1 1:102.15.1-1~deb12u1 1:115.3.1-1~deb12u1 1:115.3.1-1 | |
| Thunderbird | <78.3 | 78.3 |
| Firefox | <81 | 81 |
| Firefox ESR | <78.3 | 78.3 |
| Firefox | <81.0 | |
| Firefox ESR | <78.3 | |
| Thunderbird | <78.3 | |
| SUSE Linux | =15.1 | |
| SUSE Linux | =15.2 | |
| Debian Linux | =9.0 | |
| Debian Linux | =10.0 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1660211
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-44/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-42/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-43/
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00020.html
- https://security.gentoo.org/glsa/202010-02
- https://www.debian.org/security/2020/dsa-4770
- https://www.mozilla.org/security/advisories/mfsa2020-42/
- https://www.mozilla.org/security/advisories/mfsa2020-43/
- https://www.mozilla.org/security/advisories/mfsa2020-44/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-42/#CVE-2020-15678
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-43/#CVE-2020-15678
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-44/#CVE-2020-15678
- https://security-tracker.debian.org/tracker/CVE-2020-15678
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2020-15678?
CVE-2020-15678 is classified as a high severity vulnerability due to the potential for a use-after-free condition which can lead to application crashes or code execution.
How do I fix CVE-2020-15678?
To fix CVE-2020-15678, update to the latest version of Firefox or Firefox ESR recommended in the associated patches.
Which versions are affected by CVE-2020-15678?
CVE-2020-15678 affects several versions of Firefox, Firefox ESR, and Thunderbird prior to their respective patched versions.
What happens if CVE-2020-15678 is exploited?
Exploitation of CVE-2020-15678 could allow an attacker to execute arbitrary code, potentially compromising user data and system integrity.
Is there a workaround for CVE-2020-15678?
There are no known workarounds for CVE-2020-15678; the best course of action is to apply the necessary software updates.
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