RedHat: RHSA-2016-1573:01 Moderate: squid security update
Summary
Squid is a high-performance proxy caching server for web clients,
supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* It was found that the fix for CVE-2016-4051 released via RHSA-2016:1138
did not properly prevent the stack overflow in the munge_other_line()
function. A remote attacker could send specially crafted data to the Squid
proxy, which would exploit the cachemgr CGI utility, possibly triggering
execution of arbitrary code. (CVE-2016-5408)
Red Hat would like to thank Amos Jeffries (Squid) for reporting this issue.
Summary
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 squid service will be restarted
automatically.
References
https://access.redhat.com/security/cve/CVE-2016-5408 https://access.redhat.com/errata/RHSA-2016:1138.html https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Server (v. 6):
Source:
squid-3.1.23-16.el6_8.6.src.rpm
i386:
squid-3.1.23-16.el6_8.6.i686.rpm
squid-debuginfo-3.1.23-16.el6_8.6.i686.rpm
ppc64:
squid-3.1.23-16.el6_8.6.ppc64.rpm
squid-debuginfo-3.1.23-16.el6_8.6.ppc64.rpm
s390x:
squid-3.1.23-16.el6_8.6.s390x.rpm
squid-debuginfo-3.1.23-16.el6_8.6.s390x.rpm
x86_64:
squid-3.1.23-16.el6_8.6.x86_64.rpm
squid-debuginfo-3.1.23-16.el6_8.6.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
squid-3.1.23-16.el6_8.6.src.rpm
i386:
squid-3.1.23-16.el6_8.6.i686.rpm
squid-debuginfo-3.1.23-16.el6_8.6.i686.rpm
x86_64:
squid-3.1.23-16.el6_8.6.x86_64.rpm
squid-debuginfo-3.1.23-16.el6_8.6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for squid is now available for Red Hat Enterprise Linux 6.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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Bugs Fixed
1359203 - CVE-2016-5408 squid: Buffer overflow vulnerability in cachemgr.cgi tool