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Debian Security Advisory DSA 2271-1 (curl)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update to curl announced via advisory DSA 2271-1.
Insight
Insight
Richard Silverman discovered that when doing GSSAPI authentication, libcurl unconditionally performs credential delegation. This hands the server a copy of the client's security credentials, allowing the server to impersonate the client to any other using the same GSSAPI mechanism. This is obviously a very sensitive operation, which should only be done when the user explicitly so directs. For the oldstable distribution (lenny), this problem has been fixed in version 7.18.2-8lenny5. For the stable distribution (squeeze), this problem has been fixed in version 7.21.0-2. For the testing distribution (wheezy), this problem has been fixed in version 7.21.6-2. For the unstable distribution (sid), this problem has been fixed in version 7.21.6-2.
Solution
Solution
We recommend that you upgrade your curl packages.