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GLSA
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Joined: 12 May 2004
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PostPosted: Thu Nov 17, 2016 10:26 am    Post subject: [ GLSA 201611-10 ] libuv Reply with quote

Gentoo Linux Security Advisory

Title: libuv: Privilege escalation (GLSA 201611-10)
Severity: normal
Exploitable: local, remote
Date: November 17, 2016
Bug(s): #540826
ID: 201611-10

Synopsis

A vulnerability in libuv could lead to privilege escalation.

Background

libuv is a multi-platform support library with a focus on asynchronous
I/O.


Affected Packages

Package: dev-libs/libuv
Vulnerable: < 1.4.2
Unaffected: >= 1.4.2
Architectures: All supported architectures


Description

It was discovered that libuv does not call setgroups before calling
setuid/setgid. If this is not called, then even though the uid has been
dropped, there may still be groups associated that permit superuser
privileges.


Impact

Context-dependent attackers could escalate privileges via unspecified
vectors.


Workaround

There is no known workaround at this time.

Resolution

All libuv users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --verbose --oneshot ">=dev-libs/libuv-1.4.2"
   


References

CVE-2015-0278
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