libjavascriptcoregtk-4.0-18 2.32.4-0ubuntu0.18.04.1: libjavascriptcoregtk-4.0-18 2.32.4-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)

libjavascriptcoregtk-4.0-18 2.32.4-0ubuntu0.18.04.1, released December 24, 2021, fixes 6 CVEs in libjavascriptcoregtk-4.0-18. One of them is being exploited (CVE-2021-30858); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEVUnsupported product

CVEs closed

None rated Critical

Exploited

CVE-2021-30858

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.1338

96th percentile

Priority of the 6 CVEs

Patch now 1
                                Urgent 0
                                High 5
                                Routine 0

Fixed package versions

Product	Release	Fixed in
libjavascriptcoregtk-4.0-18	Ubuntu 18.04.6 LTS (bionic)	2.32.4-0ubuntu0.18.04.1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Patch now	CVE-2021-30858	webkit2gtk3-jsc: webkitgtk: Use-after-free leading to arbitrary code execution	8.8	0.1338	KEVExploited
High	CVE-2021-30849	iTunes: Multiple memory corruption issues were addressed with improved memory handling.	8.8	0.0190	None reported
High	CVE-2021-45482	webkit2gtk3-devel: ELSA-2022-1777: webkit2gtk3 security, bug fix, and enhancement update (MODERATE)	8.8	0.0153	None reported
High	CVE-2021-30809	webkit2gtk3-jsc-devel: ELSA-2022-1777: webkit2gtk3 security, bug fix, and enhancement update (MODERATE)	8.8	0.0151	None reported
High	CVE-2021-30848	webkit2gtk3-jsc: ELSA-2022-1777: webkit2gtk3 security, bug fix, and enhancement update (MODERATE)	8.8	0.0127	None reported
High	CVE-2021-30836	gir1.2-javascriptcoregtk-4.0: An out-of-bounds read was addressed with improved input validation	8.8	0.0110	None reported

Also fixes CVE-2021-30858

gir1.2-javascriptcoregtk-4.0 2.32.4-0ubuntu0.18.04.1
gir1.2-javascriptcoregtk-4.0 on Ubuntu 18.04.6 LTS (bionic)
gir1.2-javascriptcoregtk-4.0 2.32.4-0ubuntu0.20.04.1
gir1.2-javascriptcoregtk-4.0 on Ubuntu 20.04 LTS (focal)
gir1.2-webkit2-4.0 2.32.4-0ubuntu0.18.04.1
gir1.2-webkit2-4.0 on Ubuntu 18.04.6 LTS (bionic)
gir1.2-webkit2-4.0 2.32.4-0ubuntu0.20.04.1
gir1.2-webkit2-4.0 on Ubuntu 20.04 LTS (focal)
libjavascriptcoregtk-4.0-18 2.32.4-0ubuntu0.20.04.1
libjavascriptcoregtk-4.0-18 on Ubuntu 20.04 LTS (focal)
libjavascriptcoregtk-4.0-bin 2.32.4-0ubuntu0.18.04.1
libjavascriptcoregtk-4.0-bin on Ubuntu 18.04.6 LTS (bionic)
libjavascriptcoregtk-4.0-bin 2.32.4-0ubuntu0.20.04.1
libjavascriptcoregtk-4.0-bin on Ubuntu 20.04 LTS (focal)
libwebkit2gtk-4.0-37 2.32.4-0ubuntu0.18.04.1
libwebkit2gtk-4.0-37 on Ubuntu 18.04.6 LTS (bionic)

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