From 4f2d7949f03e1c198bc888f2d05f421d35c57e21 Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Mon, 9 Oct 2017 18:53:29 +0100 Subject: reinit the tree, so we can have metadata --- metadata/glsa/glsa-200406-21.xml | 73 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 metadata/glsa/glsa-200406-21.xml (limited to 'metadata/glsa/glsa-200406-21.xml') diff --git a/metadata/glsa/glsa-200406-21.xml b/metadata/glsa/glsa-200406-21.xml new file mode 100644 index 000000000000..d02b35055fb9 --- /dev/null +++ b/metadata/glsa/glsa-200406-21.xml @@ -0,0 +1,73 @@ + + + + mit-krb5: Multiple buffer overflows in krb5_aname_to_localname + + mit-krb5 contains multiple buffer overflows in the function + krb5_aname_to_localname(). This could potentially lead to a complete remote + system compromise. + + mit-krb5 + 2004-06-29 + 2004-06-29: 01 + 52744 + remote + + + 1.3.3-r1 + 1.3.3 + + + +

+ mit-krb5 is the free implementation of the Kerberos network authentication + protocol by the Massachusetts Institute of Technology. +

+
+ +

+ The library function krb5_aname_to_localname() contains multiple buffer + overflows. This is only exploitable if explicit mapping or rules-based + mapping is enabled. These are not enabled as default. +

+

+ With explicit mapping enabled, an attacker must authenticate using a + principal name listed in the explicit mapping list. +

+

+ With rules-based mapping enabled, an attacker must first be able to create + arbitrary principal names either in the local realm Kerberos realm or in a + remote realm from which the local realm's service are reachable by + cross-realm authentication. +

+
+ +

+ An attacker could use these vulnerabilities to execute arbitrary code with + the permissions of the user running mit-krb5, which could be the root user. +

+
+ +

+ There is no known workaround at this time. All users are encouraged to + upgrade to the latest available version. +

+
+ +

+ mit-krb5 users should upgrade to the latest version: +

+ + # emerge sync + + # emerge -pv ">=app-crypt/mit-krb5-1.3.3-r1" + # emerge ">=app-crypt/mit-krb5-1.3.3-r1" +
+ + CAN-2004-0523 + MIT krb5 Security Advisory + + + jaervosz + +
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