Detections
Analytics
CentOS 5 : tcl (CESA-2013:0122)
medium Nessus Plugin ID 63567
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated tcl packages that fix two security issues and one bug are now available for Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
Tcl (Tool Command Language) provides a powerful platform for creating integration applications that tie together diverse applications, protocols, devices, and frameworks. When paired with the Tk toolkit, Tcl provides a fast and powerful way to create cross-platform GUI applications.
Two denial of service flaws were found in the Tcl regular expression handling engine. If Tcl or an application using Tcl processed a specially crafted regular expression, it would lead to excessive CPU and memory consumption. (CVE-2007-4772, CVE-2007-6067)
This update also fixes the following bug :
* Due to a suboptimal implementation of threading in the current version of the Tcl language interpreter, an attempt to use threads in combination with fork in a Tcl script could cause the script to stop responding. At the moment, it is not possible to rewrite the source code or drop support for threading entirely. Consequent to this, this update provides a version of Tcl without threading support in addition to the standard version with this support. Users who need to use fork in their Tcl scripts and do not require threading can now switch to the version without threading support by using the alternatives command. (BZ#478961)
All users of Tcl are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
Solution
Update the affected tcl packages.See Also
Plugin Details
Severity: Medium
ID: 63567
File Name: centos_RHSA-2013-0122.nasl
Version: 1.12
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 1/17/2013
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2007-6067
Vulnerability Information
CPE: p-cpe:/a:centos:centos:tcl, p-cpe:/a:centos:centos:tcl-devel, p-cpe:/a:centos:centos:tcl-html, cpe:/o:centos:centos:5
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 1/9/2013
Vulnerability Publication Date: 1/9/2008
Reference Information
CVE: CVE-2007-4772, CVE-2007-6067
BID: 27163