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Critical Update for librelp Buffer Overflow in Red Hat Enterprise Linux 6

red hat
Calendar Grey April 24, 2018
Scroller Redhat
Essential patch for librelp on RHEL 6 resolves stack-based buffer overflow vulnerability.
An update for librelp is now available for Red Hat Enterprise Linux 6

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

Summary

Librelp is an easy-to-use library for the Reliable Event Logging Protocol (RELP) protocol. RELP is a general-purpose, extensible logging protocol.
Security Fix(es):
* librelp: Stack-based buffer overflow in relpTcpChkPeerName function in src/tcp.c (CVE-2018-1000140)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Rainer Gerhards (rsyslog) for reporting this issue. Upstream acknowledges Bas van Schaik (lgtm.com / Semmle) and Kevin Backhouse (lgtm.com / Semmle) as the original reporters.

Topics%20covered

Topics Covered

security advisory security update buffer overflow critical software fix red hat enterprise linux librelp

References

https://access.redhat.com/security/cve/CVE-2018-1000140 https://access.redhat.com/security/updates/classification/#critical

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: librelp-1.2.7-3.el6_9.1.src.rpm
i386: librelp-1.2.7-3.el6_9.1.i686.rpm librelp-debuginfo-1.2.7-3.el6_9.1.i686.rpm
x86_64: librelp-1.2.7-3.el6_9.1.x86_64.rpm librelp-debuginfo-1.2.7-3.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: librelp-debuginfo-1.2.7-3.el6_9.1.i686.rpm librelp-devel-1.2.7-3.el6_9.1.i686.rpm
x86_64: librelp-1.2.7-3.el6_9.1.i686.rpm librelp-debuginfo-1.2.7-3.el6_9.1.i686.rpm librelp-debuginfo-1.2.7-3.el6_9.1.x86_64.rpm librelp-devel-1.2.7-3.el6_9.1.i686.rpm librelp-devel-1.2.7-3.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: librelp-1.2.7-3.el6_9.1.src.rpm
x86_64: librelp-1.2.7-3.el6_9.1.x86_64.rpm librelp-debuginfo-1.2.7-3.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
x86_64: librelp-1.2.7-3.el6_9.1.i686.rpm librelp-debuginfo-1.2.7-3.el6_9.1.i686.rpm librelp-debuginfo-1.2.7-3.el6_9.1.x86_64.rpm librelp-devel-1.2.7-3.el6_9.1.i686.rpm librelp-devel-1.2.7-3.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: librelp-1.2.7-3.el6_9.1.src.rpm
i386: librelp-1.2.7-3.el6_9.1.i686.rpm librelp-debuginfo-1.2.7-3.el6_9.1.i686.rpm
ppc64: librelp-1.2.7-3.el6_9.1.ppc64.rpm librelp-debuginfo-1.2.7-3.el6_9.1.ppc64.rpm
s390x:

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:1225-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1225
Issue date: 2018-04-24

Topic

An update for librelp is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Critical. 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 security update buffer overflow critical software fix red hat enterprise linux librelp

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1560084 - CVE-2018-1000140 librelp: Stack-based buffer overflow in relpTcpChkPeerName function in src/tcp.c

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