Low: cups security and bug fix update

Synopsis

Low: cups security and bug fix update

Type/Severity

Security Advisory: Low

Topic

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

Red Hat Product Security has rated this update as having a security impact of Low. 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 Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating systems.

Security Fix(es):

• cups: heap based buffer overflow in libcups's ppdFindOption() in ppd-mark.c (CVE-2020-3898)
  

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

After installing this update, the cupsd service will be restarted automatically.

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 - 1689207 - Add failover backend
• BZ - 1775590 - rastertoepson filter crashes with paper size A6
• BZ - 1784884 - cups.service doesn't execute automatically on request
• BZ - 1809002 - scriptlet issue, /usr/bin/rm: cannot remove '/var/cache/cups/*.data'
• BZ - 1822135 - _ppdOpen() leaks 'string' variable
• BZ - 1823964 - CVE-2020-3898 cups: heap based buffer overflow in libcups's ppdFindOption() in ppd-mark.c
• BZ - 1838449 - ipp/socket backends connect to turned off device for eternity (contimeout is not applied)

CVEs

• CVE-2020-3898

References

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