Moderate: gd security update

Synopsis

Moderate: gd security update

Type/Severity

Security Advisory: Moderate

Topic

An update for gd 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.

Description

GD is an open source code library for the dynamic creation of images by programmers. GD creates PNG, JPEG, GIF, WebP, XPM, BMP images, among other formats.

Security Fix(es):

• gd: Heap-based buffer overflow in gdImageColorMatch() in gd_color_match.c (CVE-2019-6977)
  
• gd: NULL pointer dereference in gdImageClone (CVE-2018-14553)
  
• gd: Double free in the gdImage*Ptr in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c (CVE-2019-6978)
  

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 8.3 Release Notes linked from 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 for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 1600727 - CVE-2018-14553 gd: NULL pointer dereference in gdImageClone
• BZ - 1671390 - CVE-2019-6978 gd: Double free in the gdImage*Ptr in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c
• BZ - 1672207 - CVE-2019-6977 gd: Heap-based buffer overflow in gdImageColorMatch() in gd_color_match.c

CVEs

• CVE-2018-14553
• CVE-2019-6977
• CVE-2019-6978

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/