[RHSA-2021:4231-04] Moderate: libwebp security update

Tue Nov 9 20:43:03 UTC 2021

An update for libwebp is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

The libwebp packages provide a library and tools for the WebP graphics
format. WebP is an image format with a lossy compression of digital
photographic images. WebP consists of a codec based on the VP8 format, and
a container based on the Resource Interchange File Format (RIFF).
Webmasters, web developers and browser developers can use WebP to compress,
archive, and distribute digital images more efficiently.

Security Fix(es):

* libwebp: out-of-bounds read in WebPMuxCreateInternal (CVE-2018-25009)

* libwebp: out-of-bounds read in ApplyFilter() (CVE-2018-25010)

* libwebp: out-of-bounds read in WebPMuxCreateInternal() (CVE-2018-25012)

* libwebp: out-of-bounds read in ShiftBytes() (CVE-2018-25013)

* libwebp: use of uninitialized value in ReadSymbol() (CVE-2018-25014)

* libwebp: out-of-bounds read in ChunkVerifyAndAssign() in mux/muxread.c
(CVE-2020-36330)

* libwebp: out-of-bounds read in ChunkAssignData() in mux/muxinternal.c
(CVE-2020-36331)

* libwebp: excessive memory allocation when reading a file (CVE-2020-36332)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.5 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1956853 - CVE-2020-36330 libwebp: out-of-bounds read in ChunkVerifyAndAssign() in mux/muxread.c
1956856 - CVE-2020-36331 libwebp: out-of-bounds read in ChunkAssignData() in mux/muxinternal.c
1956868 - CVE-2020-36332 libwebp: excessive memory allocation when reading a file
1956917 - CVE-2018-25009 libwebp: out-of-bounds read in WebPMuxCreateInternal
1956918 - CVE-2018-25010 libwebp: out-of-bounds read in ApplyFilter()
1956922 - CVE-2018-25012 libwebp: out-of-bounds read in WebPMuxCreateInternal()
1956926 - CVE-2018-25013 libwebp: out-of-bounds read in ShiftBytes()
1956927 - CVE-2018-25014 libwebp: use of uninitialized value in ReadSymbol()

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
libwebp-1.0.0-5.el8.src.rpm

aarch64:
libwebp-1.0.0-5.el8.aarch64.rpm
libwebp-debuginfo-1.0.0-5.el8.aarch64.rpm
libwebp-debugsource-1.0.0-5.el8.aarch64.rpm
libwebp-devel-1.0.0-5.el8.aarch64.rpm
libwebp-java-debuginfo-1.0.0-5.el8.aarch64.rpm
libwebp-tools-debuginfo-1.0.0-5.el8.aarch64.rpm

ppc64le:
libwebp-1.0.0-5.el8.ppc64le.rpm
libwebp-debuginfo-1.0.0-5.el8.ppc64le.rpm
libwebp-debugsource-1.0.0-5.el8.ppc64le.rpm
libwebp-devel-1.0.0-5.el8.ppc64le.rpm
libwebp-java-debuginfo-1.0.0-5.el8.ppc64le.rpm
libwebp-tools-debuginfo-1.0.0-5.el8.ppc64le.rpm

s390x:
libwebp-1.0.0-5.el8.s390x.rpm
libwebp-debuginfo-1.0.0-5.el8.s390x.rpm
libwebp-debugsource-1.0.0-5.el8.s390x.rpm
libwebp-devel-1.0.0-5.el8.s390x.rpm
libwebp-java-debuginfo-1.0.0-5.el8.s390x.rpm
libwebp-tools-debuginfo-1.0.0-5.el8.s390x.rpm

x86_64:
libwebp-1.0.0-5.el8.i686.rpm
libwebp-1.0.0-5.el8.x86_64.rpm
libwebp-debuginfo-1.0.0-5.el8.i686.rpm
libwebp-debuginfo-1.0.0-5.el8.x86_64.rpm
libwebp-debugsource-1.0.0-5.el8.i686.rpm
libwebp-debugsource-1.0.0-5.el8.x86_64.rpm
libwebp-devel-1.0.0-5.el8.i686.rpm
libwebp-devel-1.0.0-5.el8.x86_64.rpm
libwebp-java-debuginfo-1.0.0-5.el8.i686.rpm
libwebp-java-debuginfo-1.0.0-5.el8.x86_64.rpm
libwebp-tools-debuginfo-1.0.0-5.el8.i686.rpm
libwebp-tools-debuginfo-1.0.0-5.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-25009
https://access.redhat.com/security/cve/CVE-2018-25010
https://access.redhat.com/security/cve/CVE-2018-25012
https://access.redhat.com/security/cve/CVE-2018-25013
https://access.redhat.com/security/cve/CVE-2018-25014
https://access.redhat.com/security/cve/CVE-2020-36330
https://access.redhat.com/security/cve/CVE-2020-36331
https://access.redhat.com/security/cve/CVE-2020-36332
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/

8. Contact:

The Red Hat security contact is <secalert at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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