Description
Use after free in WebRTC in Google Chrome prior to 86.0.4240.75 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Chrome | unspecified – < 86.0.4240.75 | 86.0.4240.75 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | chromium | 87.0.4280.88-0.1 | — |
| Debian 14 | firefox-esr | 78.4.0esr-1 | — |
| Debian 14 | thunderbird | 1:78.4.0-1 | — |
| Debian 13 | chromium | 87.0.4280.88-0.1 | — |
| Debian 13 | firefox-esr | 78.4.0esr-1 | — |
| Debian 13 | thunderbird | 1:78.4.0-1 | — |
| Debian 12 | chromium | 87.0.4280.88-0.1 | — |
| Debian 12 | firefox-esr | 78.4.0esr-1 | — |
| Debian 12 | thunderbird | 1:78.4.0-1 | — |
| Debian 10 | chromium | 87.0.4280.88-0.4~deb10u1 | DSA-4824-1 |
| Debian 10 | firefox-esr | 78.4.0esr-1~deb10u2 | DSA-4778-1 |
| Debian 10 | thunderbird | 1:78.4.0-1~deb10u1 | DSA-4780-1 |
| Debian 9 | firefox-esr | 78.4.0esr-1~deb9u1 | DLA-2411-1 |
| Debian 9 | thunderbird | 1:78.4.0-1~deb9u1 | DLA-2416-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | firefox | 82.0+build2-0ubuntu0.20.04.1 | USN-4599-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 20.04 LTS | thunderbird | 1:78.7.1+build1-0ubuntu0.20.04.1 | — |
| Ubuntu 18.04 LTS | chromium-browser | 86.0.4240.75-0ubuntu0.18.04.1 | — |
| Ubuntu 18.04 LTS | firefox | 82.0+build2-0ubuntu0.18.04.1 | USN-4599-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | thunderbird | 1:78.8.1+build1-0ubuntu0.18.04.1 | — |
| Ubuntu 16.04 LTS | chromium-browser | 86.0.4240.75-0ubuntu0.16.04.1 | — |
| Ubuntu 16.04 LTS | firefox | 82.0+build2-0ubuntu0.16.04.5 | USN-4599-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | firefox | 78.4.0-1.el8_2 | RHSA-2020:4317 |
| RHEL 8 | thunderbird | 78.4.0-1.el8_3 | RHSA-2020:4913 |
| RHEL 7 | firefox +1 | 78.4.0-1.el7_9 | RHSA-2020:4909, RHSA-2020:4310 |
| RHEL 6 | chromium-browser | 86.0.4240.75-1.el6_10 | RHSA-2020:4235 |
| RHEL 6 | firefox | 78.4.0-2.el6_10 | RHSA-2020:4330 |
| RHEL 6 | thunderbird | 78.4.0-1.el6_10 | RHSA-2020:4947 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.2 EUS | thunderbird | 78.4.0-1.el8_2 | RHSA-2020:4948 |
| RHEL 8.1 EUS | firefox +1 | 78.4.0-1.el8_1 | RHSA-2020:4945, RHSA-2020:4315 |
| RHEL 8.0 E4S | firefox +1 | 78.4.0-1.el8_0 | RHSA-2020:4944, RHSA-2020:4311 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | MozillaFirefox | 78.4.0-8.11.2 | SUSE-SU-2020:3021-1 |
| SLES 15 SP2 | MozillaThunderbird | 78.4.0-3.99.1 | SUSE-SU-2020:3091-1 |
| SLES 15 SP2 | mozilla-nspr | 4.25.1-3.15.2 | SUSE-SU-2020:3091-1 |
| SLES 15 SP1 | MozillaFirefox | 78.4.0-3.113.3 | SUSE-SU-2020:3022-1 |
| SLES 15 SP1 | MozillaThunderbird | 78.4.0-3.99.1 | SUSE-SU-2020:3091-1 |
| SLES 15 SP1 | mozilla-nspr | 4.25.1-3.15.2 | SUSE-SU-2020:3091-1 |
| SLES 12 SP5 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SLES 12 SP4 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SLES 12 SP3 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SLES 11 SP4 | MozillaFirefox | 78.4.0-78.99.1 | SUSE-SU-2020:14522-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SLES for SAP 12 SP3 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SLES for SAP 12 SP2 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SUSE Package Hub 15 SP2 | chromium | 86.0.4240.183-bp152.2.26.1 | openSUSE-SU-2020:1829-1 |
| SUSE Package Hub 15 SP2 | gn | 0.1807-bp152.2.3.4 | openSUSE-SU-2020:1829-1 |
| SUSE Package Hub 15 SP1 | chromium | 86.0.4240.75-bp151.3.113.1 | openSUSE-SU-2020:1715-1 |
| SUSE Package Hub 15 SP1 | gn | 0.1807-bp151.3.6.1 | openSUSE-SU-2020:1715-1 |
| SUSE OpenStack Cloud Crowbar 9 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SUSE OpenStack Cloud Crowbar 8 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SUSE OpenStack Cloud 9 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SUSE OpenStack Cloud 8 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SUSE OpenStack Cloud 7 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SUSE HPE Helion OpenStack 8 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
| SUSE Enterprise Storage 5 | MozillaFirefox | 78.4.0-112.28.1 | SUSE-SU-2020:3053-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 | openSUSE-SU-2024:10600-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 91.1.1-1.1 | openSUSE-SU-2024:10601-1 |
| openSUSE Tumbleweed | chromium | 93.0.4577.82-1.1 | openSUSE-SU-2024:12948-1, openSUSE-SU-2024:10681-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.2 | MozillaFirefox | 78.4.0-lp152.2.24.1 | openSUSE-SU-2020:1748-1 |
| openSUSE Leap 15.2 | MozillaThunderbird | 78.4.0-lp152.2.13.1 | openSUSE-SU-2020:1780-1 |
| openSUSE Leap 15.2 | chromium | 86.0.4240.75-lp152.2.39.1 | openSUSE-SU-2020:1705-1 |
| openSUSE Leap 15.2 | gn | 0.1807-lp152.2.3.1 | openSUSE-SU-2020:1705-1 |
| openSUSE Leap 15.2 | mozilla-nspr | 4.25.1-lp152.2.3.1 | openSUSE-SU-2020:1780-1 |
| openSUSE Leap 15.1 | MozillaFirefox | 78.4.0-lp151.2.73.1 | openSUSE-SU-2020:1732-1 |
| openSUSE Leap 15.1 | MozillaThunderbird | 78.4.0-lp151.2.53.1 | openSUSE-SU-2020:1785-1 |
| openSUSE Leap 15.1 | chromium | 86.0.4240.75-lp152.2.39.1 | openSUSE-SU-2020:1705-1 |
| openSUSE Leap 15.1 | gn | 0.1807-lp152.2.3.1 | openSUSE-SU-2020:1705-1 |
| openSUSE Leap 15.1 | mozilla-nspr | 4.25.1-lp151.2.13.1 | openSUSE-SU-2020:1785-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | librewolf | 82.0-r0 | — |
| Alpine v3.23 | firefox +1 | 82.0-r0 | — |
| Alpine v3.23 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.23 | thunderbird | 78.5.1-r0 | — |
| Alpine v3.22 | firefox +1 | 82.0-r0 | — |
| Alpine v3.22 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.22 | thunderbird | 78.5.1-r0 | — |
| Alpine v3.21 | firefox +1 | 82.0-r0 | — |
| Alpine v3.21 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.21 | thunderbird | 78.5.1-r0 | — |
| Alpine v3.20 | firefox | 82.0-r0 | — |
| Alpine v3.20 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.20 | thunderbird | 78.5.1-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | firefox | 82.0-r0 | — |
| Alpine v3.19 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.19 | thunderbird | 78.5.1-r0 | — |
| Alpine v3.18 | firefox | 82.0-r0 | — |
| Alpine v3.18 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.18 | thunderbird | 78.5.1-r0 | — |
| Alpine v3.17 | firefox | 82.0-r0 | — |
| Alpine v3.17 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.17 | thunderbird | 78.5.1-r0 | — |
| Alpine v3.16 | firefox | 82.0-r0 | — |
| Alpine v3.16 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.16 | thunderbird | 78.5.1-r0 | — |
| Alpine v3.15 | firefox | 82.0-r0 | — |
| Alpine v3.15 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.14 | firefox | 82.0-r0 | — |
| Alpine v3.14 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.13 | firefox | 82.0-r0 | — |
| Alpine v3.13 | firefox-esr | 78.5.0-r0 | — |
| Alpine v3.12 | firefox | 82.0-r0 | — |
| Alpine v3.12 | firefox-esr | 78.5.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 78.4.3-1.amzn2.0.1 | ALAS2-2020-1572 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | firefox | 78.4.0-1.0.1.el8_2 | ELSA-2020-4317 |
| Oracle Linux 8 | thunderbird | 78.4.0-1.0.1.el8_3 | ELSA-2020-4913 |
| Oracle Linux 7 | firefox +1 | 78.4.0-1.0.1.el7_9 | ELSA-2020-4909, ELSA-2020-4310 |
Advisories 41
- RHSA-2020:4947 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4948 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4944 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4945 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4913 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4909 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4317 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4330 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4315 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4310 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4311 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4235 Red Hat Security Advisory: chromium-browser security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-4599-2 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-4599-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4780-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4824-1 chromium - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4778-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2416-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2411-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2020:3091-1 Security update for MozillaThunderbird and mozilla-nspr SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3021-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10681-1 chromedriver-93.0.4577.82-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1780-1 Security update for MozillaThunderbird and mozilla-nspr SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1748-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10600-1 MozillaFirefox-92.0-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3053-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1705-1 Security update for chromium SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:14522-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3022-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1715-1 Security update for chromium SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1829-1 Security update for chromium, gn SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12948-1 ungoogled-chromium-113.0.5672.92-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1732-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · May 7, 2025
- openSUSE-SU-2020:1785-1 Security update for MozillaThunderbird and mozilla-nspr SUSE / openSUSE Security Updates · May 7, 2025
- openSUSE-SU-2024:10601-1 MozillaThunderbird-91.1.1-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ALAS2-2020-1572 Critical: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 8, 2020
- ELSA-2020-4913 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2020
- ELSA-2020-4909 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 6, 2020
- ELSA-2020-4317 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 26, 2020
- ELSA-2020-4310 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 24, 2020
References
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop.html
- https://crbug.com/1124659
- openSUSE-SU-2020:1829 vendor-advisory
- FEDORA-2020-127d40f1ab vendor-advisory
- FEDORA-2020-8aca25b5c8 vendor-advisory
- FEDORA-2020-4e8e48da22 vendor-advisory
- https://support.apple.com/kb/HT212009
- https://support.apple.com/kb/HT212011
- https://support.apple.com/kb/HT212005
- https://support.apple.com/kb/HT212003
- https://support.apple.com/kb/HT212007
- 20201215 APPLE-SA-2020-12-14-5 watchOS 7.2 mailing-list
- 20201215 APPLE-SA-2020-12-14-8 Safari 14.0.2 mailing-list
- 20201215 APPLE-SA-2020-12-14-1 iOS 14.3 and iPadOS 14.3 mailing-list
- 20201215 APPLE-SA-2020-12-14-3 macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave mailing-list
- 20201215 APPLE-SA-2020-12-14-7 tvOS 14.3 mailing-list
- DSA-4824 vendor-advisory
- GLSA-202101-30 vendor-advisory