RHSA-2021:2328 - Security Advisory

Topic

An update for qt5-qtimageformats is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

Description

The Qt Image Formats in an add-on module for the core Qt Gui library that provides support for additional image formats including MNG, TGA, TIFF, WBMP, and WebP.

Security Fix(es):

• libwebp: heap-based buffer overflow in PutLE16() (CVE-2018-25011)
• libwebp: use of uninitialized value in ReadSymbol() (CVE-2018-25014)
• libwebp: heap-based buffer overflow in WebPDecode*Into functions (CVE-2020-36328)
• libwebp: use-after-free in EmitFancyRGB() in dec/io_dec.c (CVE-2020-36329)

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.

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

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• BZ - 1956829 - CVE-2020-36328 libwebp: heap-based buffer overflow in WebPDecode*Into functions
• BZ - 1956843 - CVE-2020-36329 libwebp: use-after-free in EmitFancyRGB() in dec/io_dec.c
• BZ - 1956919 - CVE-2018-25011 libwebp: heap-based buffer overflow in PutLE16()
• BZ - 1956927 - CVE-2018-25014 libwebp: use of uninitialized value in ReadSymbol()

CVEs

• CVE-2018-25011
• CVE-2018-25014
• CVE-2020-36328
• CVE-2020-36329

References

• https://access.redhat.com/security/updates/classification/#important