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Debian: Security Advisory for libreswan (DSA-4684-1)
Information
Severity
Severity
Medium
Family
Family
Debian Local Security Checks
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Solution Type
Solution Type
Vendor Patch
Created
Created
3 years ago
Modified
Modified
3 years ago
Summary
The remote host is missing an update for the 'libreswan' package(s) announced via the DSA-4684-1 advisory.
Insight
Insight
Stephan Zeisberg discovered that the libreswan IPsec implementation could be forced into a crash/restart via a malformed IKEv1 Informational Exchange packet, resulting in denial of service.
Affected Software
Affected Software
'libreswan' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (buster), this problem has been fixed in version 3.27-6+deb10u1. We recommend that you upgrade your libreswan packages.