CVE-2021-30858

webkit2gtk3-jsc: webkitgtk: Use-after-free leading to arbitrary code execution

CVE-2021-30858 is fixed in 11 products on 1 platform, first by RHSA-2021:4097, released November 2, 2021. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.

Patch nowCISA KEV
CVSS
8.8
Moderate
Exploitation
Exploited
Listed by CISA
CISA KEV
Nov 3, 2021
Federal due date Nov 17, 2021
EPSS
0.1338
96th percentile

webkitgtk: Use-after-free leading to arbitrary code execution

Where it's fixed

ProductFixed inFixReleased
Linux
gir1.2-javascriptcoregtk-4.0 · Ubuntu 18.04.6 LTS (bionic) 2.32.4-0ubuntu0.18.04.1 gir1.2-javascriptcoregtk-4.0 2.32.4-0ubuntu0.18.04.1 Dec 24, 2021
gir1.2-javascriptcoregtk-4.0 · Ubuntu 20.04 LTS (focal) 2.32.4-0ubuntu0.20.04.1 gir1.2-javascriptcoregtk-4.0 2.32.4-0ubuntu0.20.04.1 Dec 24, 2021
gir1.2-webkit2-4.0 · Ubuntu 18.04.6 LTS (bionic) 2.32.4-0ubuntu0.18.04.1 gir1.2-webkit2-4.0 2.32.4-0ubuntu0.18.04.1 Dec 24, 2021
gir1.2-webkit2-4.0 · Ubuntu 20.04 LTS (focal) 2.32.4-0ubuntu0.20.04.1 gir1.2-webkit2-4.0 2.32.4-0ubuntu0.20.04.1 Dec 24, 2021
libjavascriptcoregtk-4.0-18 · Ubuntu 18.04.6 LTS (bionic) 2.32.4-0ubuntu0.18.04.1 libjavascriptcoregtk-4.0-18 2.32.4-0ubuntu0.18.04.1 Dec 24, 2021
libjavascriptcoregtk-4.0-18 · Ubuntu 20.04 LTS (focal) 2.32.4-0ubuntu0.20.04.1 libjavascriptcoregtk-4.0-18 2.32.4-0ubuntu0.20.04.1 Dec 24, 2021
libjavascriptcoregtk-4.0-bin · Ubuntu 18.04.6 LTS (bionic) 2.32.4-0ubuntu0.18.04.1 libjavascriptcoregtk-4.0-bin 2.32.4-0ubuntu0.18.04.1 Dec 24, 2021
libjavascriptcoregtk-4.0-bin · Ubuntu 20.04 LTS (focal) 2.32.4-0ubuntu0.20.04.1 libjavascriptcoregtk-4.0-bin 2.32.4-0ubuntu0.20.04.1 Dec 24, 2021
libwebkit2gtk-4.0-37 · Ubuntu 18.04.6 LTS (bionic) 2.32.4-0ubuntu0.18.04.1 libwebkit2gtk-4.0-37 2.32.4-0ubuntu0.18.04.1 Dec 24, 2021
libwebkit2gtk-4.0-37 · Ubuntu 20.04 LTS (focal) 2.32.4-0ubuntu0.20.04.1 libwebkit2gtk-4.0-37 2.32.4-0ubuntu0.20.04.1 Dec 24, 2021
libwebkit2gtk-4.0-37-gtk2 · Ubuntu 18.04.6 LTS (bionic) 2.32.4-0ubuntu0.18.04.1 libwebkit2gtk-4.0-37-gtk2 2.32.4-0ubuntu0.18.04.1 Dec 24, 2021
libwebkit2gtk-4.0-37-gtk2 · Ubuntu 20.04 LTS (focal) 2.32.4-0ubuntu0.20.04.1 libwebkit2gtk-4.0-37-gtk2 2.32.4-0ubuntu0.20.04.1 Dec 24, 2021
webkit2gtk-driver · Ubuntu 18.04.6 LTS (bionic) 2.32.4-0ubuntu0.18.04.1 webkit2gtk-driver 2.32.4-0ubuntu0.18.04.1 Dec 24, 2021
webkit2gtk-driver · Ubuntu 20.04 LTS (focal) 2.32.4-0ubuntu0.20.04.1 webkit2gtk-driver 2.32.4-0ubuntu0.20.04.1 Dec 24, 2021
webkit2gtk3 · RHEL 8 0:2.30.4-3.el8_4 RHSA-2021:4097 Nov 2, 2021
webkit2gtk3 · ol 8 0:2.30.4-3.el8_4 ELSA-2021-4097 Nov 2, 2021
webkit2gtk3-devel · RHEL 8 0:2.30.4-3.el8_4 RHSA-2021:4097 Nov 2, 2021
webkit2gtk3-devel · ol 8 0:2.30.4-3.el8_4 ELSA-2021-4097 Nov 2, 2021
webkit2gtk3-jsc · RHEL 8 0:2.30.4-3.el8_4 RHSA-2021:4097 Nov 2, 2021
webkit2gtk3-jsc · ol 8 0:2.30.4-3.el8_4 ELSA-2021-4097 Nov 2, 2021
webkit2gtk3-jsc-devel · RHEL 8 0:2.30.4-3.el8_4 RHSA-2021:4097 Nov 2, 2021
webkit2gtk3-jsc-devel · ol 8 0:2.30.4-3.el8_4 ELSA-2021-4097 Nov 2, 2021

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