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Gentoo: GLSA-201707-12 High: MAN DB Privilege Escalation

gentoo
Calendar Grey July 9, 2017
Dist Gentoo Esm H88
Uncover the Gentoo GLSA 202104-15 notification regarding MAN DB elevated authority risks with significant consequences.
A vulnerability in MAN DB allows local users to gain root privileges.

Summary

The /var/cache/man directory as part of the MAN DB package has group permissions set to root.

Topics%20covered

Topics Covered

security advisory Gentoo high severity privilege escalation local access root access MAN DB

Resolution

All MAN DB users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/man-db-2.7.6.1-r2"

References

[ 1 ] CVE-2015-1336 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1336

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201707-12
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: High
Title: MAN DB: Privilege escalation
Date: July 09, 2017
Bugs: #602588
ID: 201707-12

Topics%20covered

Topics Covered

security advisory Gentoo high severity privilege escalation local access root access MAN DB

Synopsis

A vulnerability in MAN DB allows local users to gain root privileges.

Background

MAN DB is a man replacement that utilizes BerkelyDB instead of flat files.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/man-db < 2.7.6.1-r2 >= 2.7.6.1-r2

Impact

===== A local user who does not belong to the root group, but has the ability to modify the /var/cache/man directory can escalate privileges to the group root.

Workaround

There is no known workaround at this time.