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Scientific Linux Security Update : squid on SL7.x x86_64 (20160531)
high Nessus Plugin ID 91513
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Synopsis
The remote Scientific Linux host is missing one or more security updates.Description
Security Fix(es) :- A buffer overflow flaw was found in the way the Squid cachemgr.cgi utility processed remotely relayed Squid input. When the CGI interface utility is used, a remote attacker could possibly use this flaw to execute arbitrary code. (CVE-2016-4051)
- Buffer overflow and input validation flaws were found in the way Squid processed ESI responses. If Squid was used as a reverse proxy, or for TLS/HTTPS interception, a remote attacker able to control ESI components on an HTTP server could use these flaws to crash Squid, disclose parts of the stack memory, or possibly execute arbitrary code as the user running Squid.
(CVE-2016-4052, CVE-2016-4053, CVE-2016-4054)
- An input validation flaw was found in the way Squid handled intercepted HTTP Request messages. An attacker could use this flaw to bypass the protection against issues related to CVE-2009-0801, and perform cache poisoning attacks on Squid. (CVE-2016-4553)
- An input validation flaw was found in Squid's mime_get_header_field() function, which is used to search for headers within HTTP requests. An attacker could send an HTTP request from the client side with specially crafted header Host header that bypasses same-origin security protections, causing Squid operating as interception or reverse-proxy to contact the wrong origin server. It could also be used for cache poisoning for client not following RFC 7230.
(CVE-2016-4554)
- A NULL pointer dereference flaw was found in the way Squid processes ESI responses. If Squid was used as a reverse proxy or for TLS/HTTPS interception, a malicious server could use this flaw to crash the Squid worker process. (CVE-2016-4555)
- An incorrect reference counting flaw was found in the way Squid processes ESI responses. If Squid is configured as reverse-proxy, for TLS/HTTPS interception, an attacker controlling a server accessed by Squid, could crash the squid worker, causing a Denial of Service attack. (CVE-2016-4556)
Solution
Update the affected squid, squid-debuginfo and / or squid-sysvinit packages.See Also
Plugin Details
Severity: High
ID: 91513
File Name: sl_20160531_squid_on_SL7_x.nasl
Version: 2.7
Type: local
Agent: unix
Published: 6/8/2016
Updated: 1/14/2021
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: High
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vulnerability Information
CPE: p-cpe:/a:fermilab:scientific_linux:squid, p-cpe:/a:fermilab:scientific_linux:squid-debuginfo, p-cpe:/a:fermilab:scientific_linux:squid-sysvinit, x-cpe:/o:fermilab:scientific_linux
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Patch Publication Date: 5/31/2016
Vulnerability Publication Date: 3/4/2009
Reference Information
CVE: CVE-2009-0801, CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4553, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556
CWE: 264