Moderate: libtiff security update

Synopsis

Moderate: libtiff security update

Type/Severity

Security Advisory: Moderate

Topic

An update for libtiff is now available for Red Hat Enterprise Linux 7.

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

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.

Security Fix(es):

• libtiff: integer overflow in _TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c (CVE-2019-14973)
  
• libtiff: integer overflow leading to heap-based buffer overflow in tif_getimage.c (CVE-2019-17546)
  

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 7.9 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

All running applications linked against libtiff must be restarted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 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 Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• BZ - 1745951 - CVE-2019-14973 libtiff: integer overflow in _TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c
• BZ - 1765705 - CVE-2019-17546 libtiff: integer overflow leading to heap-based buffer overflow in tif_getimage.c

CVEs

• CVE-2019-14973
• CVE-2019-17546

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index