Detections
Analytics
RHEL 6 : glibc (RHSA-2011:0413)
medium Nessus Plugin ID 53292
Language:
Synopsis
The remote Red Hat host is missing one or more security updates.Description
Updated glibc packages that fix three security issues are now available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having important 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.
The glibc packages contain the standard C libraries used by multiple programs on the system. These packages contain the standard C and the standard math libraries. Without these two libraries, a Linux system cannot function properly.
The fix for CVE-2010-3847 introduced a regression in the way the dynamic loader expanded the $ORIGIN dynamic string token specified in the RPATH and RUNPATH entries in the ELF library header. A local attacker could use this flaw to escalate their privileges via a setuid or setgid program using such a library. (CVE-2011-0536)
It was discovered that the glibc fnmatch() function did not properly restrict the use of alloca(). If the function was called on sufficiently large inputs, it could cause an application using fnmatch() to crash or, possibly, execute arbitrary code with the privileges of the application. (CVE-2011-1071)
It was discovered that the locale command did not produce properly escaped output as required by the POSIX specification. If an attacker were able to set the locale environment variables in the environment of a script that performed shell evaluation on the output of the locale command, and that script were run with different privileges than the attacker's, it could execute arbitrary code with the privileges of the script. (CVE-2011-1095)
All users should upgrade to these updated packages, which contain backported patches to correct these issues.
Solution
Update the affected packages.See Also
https://access.redhat.com/security/cve/cve-2011-0536
https://access.redhat.com/security/cve/cve-2011-1071
https://access.redhat.com/security/cve/cve-2011-1095
https://access.redhat.com/security/cve/cve-2011-1658
Plugin Details
Severity: Medium
ID: 53292
File Name: redhat-RHSA-2011-0413.nasl
Version: 1.22
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/5/2011
Updated: 1/14/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: Medium
Base Score: 6.9
Temporal Score: 5.7
Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:6.0, p-cpe:/a:redhat:enterprise_linux:glibc-headers, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:glibc-debuginfo, p-cpe:/a:redhat:enterprise_linux:glibc-common, p-cpe:/a:redhat:enterprise_linux:glibc-devel, p-cpe:/a:redhat:enterprise_linux:glibc-static, p-cpe:/a:redhat:enterprise_linux:glibc-utils, p-cpe:/a:redhat:enterprise_linux:glibc, p-cpe:/a:redhat:enterprise_linux:nscd
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/4/2011
Vulnerability Publication Date: 1/7/2011
Exploitable With
CANVAS (CANVAS)
Core Impact
Metasploit (glibc "$ORIGIN" Expansion Privilege Escalation)
Reference Information
CVE: CVE-2010-3847, CVE-2011-0536, CVE-2011-1071, CVE-2011-1095, CVE-2011-1658, CVE-2011-1659
RHSA: 2011:0413