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author | 2015-03-08 22:02:38 +0100 | |
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committer | 2015-03-08 22:02:38 +0100 | |
commit | a24567fbc43f221b14e805f9bc0b7c6d16911c46 (patch) | |
tree | 910a04fe6ee560ac0eebac55f3cd2781c3519760 /glsa-200406-21.xml | |
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Import existing advisories
Diffstat (limited to 'glsa-200406-21.xml')
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1 files changed, 76 insertions, 0 deletions
diff --git a/glsa-200406-21.xml b/glsa-200406-21.xml new file mode 100644 index 00000000..866ed896 --- /dev/null +++ b/glsa-200406-21.xml @@ -0,0 +1,76 @@ +<?xml version="1.0" encoding="utf-8"?> +<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> +<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> + +<glsa id="200406-21"> + <title>mit-krb5: Multiple buffer overflows in krb5_aname_to_localname</title> + <synopsis> + mit-krb5 contains multiple buffer overflows in the function + krb5_aname_to_localname(). This could potentially lead to a complete remote + system compromise. + </synopsis> + <product type="ebuild">mit-krb5</product> + <announced>June 29, 2004</announced> + <revised>June 29, 2004: 01</revised> + <bug>52744</bug> + <access>remote</access> + <affected> + <package name="app-crypt/mit-krb5" auto="yes" arch="*"> + <unaffected range="ge">1.3.3-r1</unaffected> + <vulnerable range="le">1.3.3</vulnerable> + </package> + </affected> + <background> + <p> + mit-krb5 is the free implementation of the Kerberos network authentication + protocol by the Massachusetts Institute of Technology. + </p> + </background> + <description> + <p> + 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. + </p> + <p> + With explicit mapping enabled, an attacker must authenticate using a + principal name listed in the explicit mapping list. + </p> + <p> + 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. + </p> + </description> + <impact type="high"> + <p> + 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. + </p> + </impact> + <workaround> + <p> + There is no known workaround at this time. All users are encouraged to + upgrade to the latest available version. + </p> + </workaround> + <resolution> + <p> + mit-krb5 users should upgrade to the latest version: + </p> + <code> + # emerge sync + + # emerge -pv ">=app-crypt/mit-krb5-1.3.3-r1" + # emerge ">=app-crypt/mit-krb5-1.3.3-r1"</code> + </resolution> + <references> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0523">CAN-2004-0523</uri> + <uri link="http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2004-001-an_to_ln.txt">MIT krb5 Security Advisory</uri> + </references> + <metadata tag="submitter"> + jaervosz + </metadata> +</glsa> |