RHSA-2021:2354: Red Hat Security Advisory: libwebp security update

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