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[ GLSA 201203-13 ] Openswan: Denial of Service
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PostPosted: Fri Mar 16, 2012 11:26 am    Post subject: [ GLSA 201203-13 ] Openswan: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: Openswan: Denial of Service (GLSA 201203-13)
Severity: normal
Exploitable: local, remote
Date: March 16, 2012
Bug(s): #372961, #389097
ID: 201203-13

Synopsis

Multiple vulnerabilities in Openswan may create a Denial of Service
condition.


Background

Openswan is an implementation of IPsec for Linux.

Affected Packages

Package: net-misc/openswan
Vulnerable: < 2.6.37
Unaffected: >= 2.6.37
Architectures: All supported architectures


Description

Two vulnerabilities have been found in Openswan:
  • Improper permissions are used on /var/run/starter.pid and
    /var/lock/subsys/ipsec (CVE-2011-2147).
  • Openswan contains a use-after-free error in the cryptographic helper
    handler (CVE-2011-4073).


Impact

A remote authenticated attacker or a local attacker may be able to cause
a Denial of Service condition.


Workaround

There is no known workaround at this time.

Resolution

All Openswan users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/openswan-2.6.37"
   
NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since November 10, 2011. It is likely that your system is
already no longer affected by this issue.


References

CVE-2011-2147
CVE-2011-4073
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