RHSA-2021:4231: Security update for 2 packages

RHSA-2021:4231, released November 9, 2021, fixes 8 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

0.0230

83rd percentile

Priority of the 8 CVEs

Patch now 0
                                Urgent 0
                                High 8
                                Routine 0

Fixed package versions

Product	Release	Fixed in
libwebp	RHEL 8	0:1.0.0-5.el8
libwebp-devel	RHEL 8	0:1.0.0-5.el8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2020-36331	libwebp: ELSA-2021-4231: libwebp security update (MODERATE)	9.1	0.0230	None reported
High	CVE-2018-25010	libwebp: ELSA-2021-4231: libwebp security update (MODERATE)	9.1	0.0224	None reported
High	CVE-2018-25014	libwebp6: A use of uninitialized value was found in libwebp in versions before 1.0.1 in ReadSymbol().	9.8	0.0223	None reported
High	CVE-2020-36330	libwebp: ELSA-2021-4231: libwebp security update (MODERATE)	9.1	0.0223	None reported
High	CVE-2018-25009	libwebp: ELSA-2021-4231: libwebp security update (MODERATE)	9.1	0.0210	None reported
High	CVE-2018-25012	libwebp: ELSA-2021-4231: libwebp security update (MODERATE)	9.1	0.0205	None reported
High	CVE-2018-25013	webp: A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ShiftBytes().	9.1	0.0205	None reported
High	CVE-2020-36332	libsharpyuv0: A flaw was found in libwebp in versions before 1.0.1	7.5	0.0197	None reported

Also fixes CVE-2020-36331

libwebp6 0.6.1-2ubuntu0.18.04.1
libwebp6 on Ubuntu 18.04.6 LTS (bionic)
libwebp6 0.6.1-2ubuntu0.20.04.1
libwebp6 on Ubuntu 20.04 LTS (focal)
libwebpdemux2 0.6.1-2ubuntu0.18.04.1
libwebpdemux2 on Ubuntu 18.04.6 LTS (bionic)
libwebpdemux2 0.6.1-2ubuntu0.20.04.1
libwebpdemux2 on Ubuntu 20.04 LTS (focal)
libwebpmux3 0.6.1-2ubuntu0.18.04.1
libwebpmux3 on Ubuntu 18.04.6 LTS (bionic)
libwebpmux3 0.6.1-2ubuntu0.20.04.1
libwebpmux3 on Ubuntu 20.04 LTS (focal)
webp 0.6.1-2ubuntu0.18.04.1
webp on Ubuntu 18.04.6 LTS (bionic)
webp 0.6.1-2ubuntu0.20.04.1
webp on Ubuntu 20.04 LTS (focal)

Vendor advisory

https://access.redhat.com/errata/RHSA-2021:4231

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