SB2016042502 - Stack-based buffer overflow in Squid-cache Squid

Description

This security bulletin contains information about 1 vulnerability.

1) Stack-based buffer overflow (CVE-ID: CVE-2016-4052)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing crafted Edge Side Includes (ESI) responses. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
• http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
• http://www.debian.org/security/2016/dsa-3625
• http://www.openwall.com/lists/oss-security/2016/04/20/6
• http://www.openwall.com/lists/oss-security/2016/04/20/9
• http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
• http://www.securityfocus.com/bid/86788
• http://www.securityfocus.com/bid/91787
• http://www.securitytracker.com/id/1035647
• http://www.squid-cache.org/Advisories/SQUID-2016_6.txt
• http://www.ubuntu.com/usn/USN-2995-1
• https://access.redhat.com/errata/RHSA-2016:1138
• https://access.redhat.com/errata/RHSA-2016:1139
• https://access.redhat.com/errata/RHSA-2016:1140
• https://security.gentoo.org/glsa/201607-01