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Red Hat Enterprise Linux 7: RHSA-2020-3864 Moderate: CUPS Update

red hat
Calendar Grey September 29, 2020
Dist Redhat Esm H88
Critical patch released for CUPS on Fedora mitigating memory corruption and remote DNS exploitation threats. Discover the details of the updates.
An update for cups is now available for Red Hat Enterprise Linux 7

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.

Summary

The Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating systems.
Security Fix(es):
* cups: DNS rebinding attacks via incorrect whitelist (CVE-2017-18190)
* cups: stack-buffer-overflow in libcups's asn1_get_type function (CVE-2019-8675)
* cups: stack-buffer-overflow in libcups's asn1_get_packed function (CVE-2019-8696)
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.

Topics%20covered

Topics Covered

security advisory moderate Red Hat buffer overflow bug fix CUPS DNS attacks

References

https://access.redhat.com/security/cve/CVE-2017-18190 https://access.redhat.com/security/cve/CVE-2019-8675 https://access.redhat.com/security/cve/CVE-2019-8696 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

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: cups-1.6.3-51.el7.src.rpm
noarch: cups-filesystem-1.6.3-51.el7.noarch.rpm
x86_64: cups-1.6.3-51.el7.x86_64.rpm cups-client-1.6.3-51.el7.x86_64.rpm cups-debuginfo-1.6.3-51.el7.i686.rpm cups-debuginfo-1.6.3-51.el7.x86_64.rpm cups-libs-1.6.3-51.el7.i686.rpm cups-libs-1.6.3-51.el7.x86_64.rpm cups-lpd-1.6.3-51.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: cups-debuginfo-1.6.3-51.el7.i686.rpm cups-debuginfo-1.6.3-51.el7.x86_64.rpm cups-devel-1.6.3-51.el7.i686.rpm cups-devel-1.6.3-51.el7.x86_64.rpm cups-ipptool-1.6.3-51.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: cups-1.6.3-51.el7.src.rpm
noarch: cups-filesystem-1.6.3-51.el7.noarch.rpm
x86_64: cups-1.6.3-51.el7.x86_64.rpm cups-client-1.6.3-51.el7.x86_64.rpm cups-debuginfo-1.6.3-51.el7.i686.rpm cups-debuginfo-1.6.3-51.el7.x86_64.rpm cups-libs-1.6.3-51.el7.i686.rpm cups-libs-1.6.3-51.el7.x86_64.rpm cups-lpd-1.6.3-51.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: cups-debuginfo-1.6.3-51.el7.i686.rpm cups-debuginfo-1.6.3-51.el7.x86_64.rpm cups-devel-1.6.3-51.el7.i686.rpm cups-devel-1.6.3-51.el7.x86_64.rpm cups-ipptool-1.6.3-51.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: cups-1.6.3-51.el7.src.rpm


Read the Full Advisory


Advisory ID: RHSA-2020:3864-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3864
Issue date: 2020-09-29

Topic

An update for cups is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat buffer overflow bug fix CUPS DNS attacks

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1546395 - CVE-2017-18190 cups: DNS rebinding attacks via incorrect whitelist

1715907 - CUPS- client: cupsGetPPD3() function tries to load PPD from IPP printer and not from the CUPS queue

1738455 - CVE-2019-8675 cups: stack-buffer-overflow in libcups's asn1_get_type function

1738497 - CVE-2019-8696 cups: stack-buffer-overflow in libcups's asn1_get_packed function

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