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Category:   Application (Generic)  >   Glibc Vendors:   GNU [multiple authors]
(Ubuntu Issues Fix) Glibc getaddrinfo() Stack Overflow Lets Remote or Local Users Execute Arbitrary Code
SecurityTracker Alert ID:  1035021
SecurityTracker URL:  http://securitytracker.com/id/1035021
CVE Reference:   CVE-2015-7547   (Links to External Site)
Date:  Feb 16 2016
Impact:   Execution of arbitrary code via local system, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Glibc. A remote or local user can execute arbitrary code on the target system.

A remote or local user can send specially crafted data to trigger a stack overflow in the getaddrinfo() function in the glibc DNS client resolver code ('resolv/nss_dns') and execute arbitrary code on the target system. The code will run with the privileges of the target application using the glibc library.

Various applications may be affected, including ssh, sudo, and curl.

Additional information is available at:

https://googleonlinesecurity.blogspot.com/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html


Impact:   A remote or local user can execute arbitrary code on the target system.
Solution:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

http://www.ubuntu.com/usn/usn-2900-1

Vendor URL:  www.ubuntu.com/usn/usn-2900-1 (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  12.04 LTS, 14.04 LTS, 15.10

Message History:   This archive entry is a follow-up to the message listed below.
Feb 16 2016 Glibc getaddrinfo() Stack Overflow Lets Remote or Local Users Execute Arbitrary Code



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