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Amazon Linux AMI : glibc (ALAS-2015-513)
medium Nessus Plugin ID 83056
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
A buffer overflow flaw was found in the way glibc's gethostbyname_r() and other related functions computed the size of a buffer when passed a misaligned buffer as input. An attacker able to make an application call any of these functions with a misaligned buffer could use this flaw to crash the application or, potentially, execute arbitrary code with the permissions of the user running the application.(CVE-2015-1781)
It was discovered that, under certain circumstances, glibc's getaddrinfo() function would send DNS queries to random file descriptors. An attacker could potentially use this flaw to send DNS queries to unintended recipients, resulting in information disclosure or data loss due to the application encountering corrupted data.
(CVE-2013-7423)
Solution
Run 'yum update glibc' to update your system.See Also
Plugin Details
Severity: Medium
ID: 83056
File Name: ala_ALAS-2015-513.nasl
Version: 2.3
Type: local
Agent: unix
Published: 4/27/2015
Updated: 4/18/2018
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:glibc-static, p-cpe:/a:amazon:linux:glibc-devel, p-cpe:/a:amazon:linux:glibc-common, p-cpe:/a:amazon:linux:glibc, p-cpe:/a:amazon:linux:glibc-utils, p-cpe:/a:amazon:linux:glibc-debuginfo, p-cpe:/a:amazon:linux:glibc-headers, p-cpe:/a:amazon:linux:glibc-debuginfo-common, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:nscd
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Patch Publication Date: 4/22/2015
Reference Information
CVE: CVE-2013-7423, CVE-2015-1781