ASA-201801-18 log generated external raw
[ASA-201801-18] glibc: privilege escalation |
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Arch Linux Security Advisory ASA-201801-18
==========================================
Severity: High
Date : 2018-01-28
CVE-ID : CVE-2018-1000001
Package : glibc
Type : privilege escalation
Remote : No
Link : https://security.archlinux.org/AVG-590
Summary
=======
The package glibc before version 2.26-11 is vulnerable to privilege
escalation.
Resolution
==========
Upgrade to 2.26-11.
# pacman -Syu "glibc>=2.26-11"
The problem has been fixed upstream but no release is available yet.
Workaround
==========
None.
Description
===========
A buffer underflow vulnerability has been discovered in the realpath()
function in glibc 2.26 when getcwd() returns a relative or unreachable
path (i.e. not starting with '/') which may allow privilege escalation
under certain conditions.
Impact
======
A local attacker is able to escalate privileges on the affected host.
References
==========
http://www.openwall.com/lists/oss-security/2018/01/11/5
https://sourceware.org/bugzilla/show_bug.cgi?id=22679
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=52a713fdd0a30e1bd79818e2e3c4ab44ddca1a94
https://security.archlinux.org/CVE-2018-1000001
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