PT-2013-1306 · Gnu+5 · Gnu C Library+5
Siddhesh Poyarekar
·
Published
2013-11-22
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Updated
2024-06-15
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CVE-2013-4458
CVSS v2.0
5.0
Medium
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Name of the Vulnerable Software and Affected Versions
GNU C Library (aka glibc or libc6) versions 2.18 and earlier
Description
The issue is a stack-based buffer overflow in the
getaddrinfo function, which can be triggered by a hostname or IP address that results in a large number of AF INET6 address results, allowing remote attackers to cause a denial of service (crash). This problem exists due to an incomplete fix for a previous issue.Recommendations
For GNU C Library (aka glibc or libc6) versions 2.18 and earlier, consider updating to a version that includes a complete fix for this issue. As a temporary workaround, restrict the use of the
getaddrinfo function to minimize the risk of exploitation. Avoid using hostnames or IP addresses that may trigger a large number of AF INET6 address results until the issue is resolved.Exploit
Fix
DoS
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Gnu C Library
Red Hat
Suse
Ubuntu