ALSA-2022:7811: Security update for 2 packages

ALSA-2022:7811, released November 8, 2022, fixes 6 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.3527

98th percentile

Priority of the 6 CVEs

Patch now 0
                                Urgent 0
                                High 6
                                Routine 0

Fixed package versions

Product	Release	Fixed in
mingw32-expat	almalinux 8	2.4.8-1.el8
mingw64-expat	almalinux 8	2.4.8-1.el8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2022-25236	libxmltok1: xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namesp...	9.8	0.3527	None reported
High	CVE-2022-25235	libxmltok1: xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a...	9.8	0.0496	None reported
High	CVE-2022-25315	expat: In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.	9.8	0.0482	None reported
High	CVE-2022-25314	expat: In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.	7.5	0.0482	None reported
High	CVE-2022-23990	expat: Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.	9.8	0.0469	None reported
High	CVE-2022-25313	expat: In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting dep...	7.5	0.0330	None reported

Also fixes CVE-2022-25236

firefox 1:1snap1-0ubuntu1
firefox on Ubuntu 22.04.1 LTS (jammy)
RHSA-2022:0845
thunderbird on RHEL 8
RHSA-2022:0818
firefox on RHEL 8
ALSA-2022:0845
thunderbird on almalinux 8
RLSA-2022:0845
thunderbird on rocky 8
ELSA-2022-0845
thunderbird on ol 8
ALSA-2022:0818
firefox on almalinux 8
RLSA-2022:0818
firefox on rocky 8

Vendor advisory

https://osv.dev/vulnerability/ALSA-2022:7811

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