Amazon Linux AMI : glibc Multiple Vulnerabilities (ALAS-2013-270)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote Amazon Linux AMI host is missing a security update.

Description :

Multiple integer overflow flaws, leading to heap-based buffer
overflows, were found in glibc's memory allocator functions (pvalloc,
valloc, and memalign). If an application used such a function, it
could cause the application to crash or, potentially, execute
arbitrary code with the privileges of the user running the
application. (CVE-2013-4332)

It was found that getaddrinfo() did not limit the amount of stack
memory used during name resolution. An attacker able to make an
application resolve an attacker-controlled hostname or IP address
could possibly cause the application to exhaust all stack memory and
crash. (CVE-2013-1914)

A flaw was found in the regular expression matching routines that
process multibyte character input. If an application utilized the
glibc regular expression matching mechanism, an attacker could provide
specially-crafted input that, when processed, would cause the
application to crash. (CVE-2013-0242)

See also :

http://www.nessus.org/u?06ca48c7

Solution :

Run 'yum update glibc' to update your system.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: Amazon Linux Local Security Checks

Nessus Plugin ID: 71582 ()

Bugtraq ID:

CVE ID: CVE-2013-0242
CVE-2013-1914
CVE-2013-4332