Red Hat Bugzilla – Full Text Bug Listing
|Summary:||CVE-2013-1415 krb5: PKINIT null pointer deref leads to DoS (pkinit_check_kdc_pkid())|
|Product:||[Other] Security Response||Reporter:||Vincent Danen <vdanen>|
|Component:||vulnerability||Assignee:||Red Hat Product Security <security-response-team>|
|Status:||CLOSED ERRATA||QA Contact:|
|Version:||unspecified||CC:||dpal, jlieskov, jplans, nalin, nathaniel|
|Fixed In Version:||krb5-1.11.1, krb5-1.10.4, krb5-1.9.5||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2013-04-03 22:06:17 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Bug Depends On:||924620, 914756, 917909, 917910|
Description Vincent Danen 2013-02-22 11:58:28 EST
It was reported that the KDC plugin for PKINIT could dereference a NULL pointer when a malformed packet caused processing to terminate early, which led to a crash of the KDC process. An attacker would require a valid PKINIT certificate or have observed a successful PKINIT authentication to execute a successful attack. In addition, an unauthenticated attacker could execute the attack of anonymouse PKINIT was enabled. The PKINIT plugin was introduced in version 1.6.3; versions prior are not affected by this vulnerability. External References: http://krbdev.mit.edu/rt/Ticket/Display.html?id=7570 http://web.mit.edu/kerberos/krb5-1.11/ Statement: This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 5 as they did not include support for PKINIT.
Comment 1 Vincent Danen 2013-02-22 12:02:22 EST
Upstream fix is here: https://github.com/krb5/krb5/commit/f249555301940c6df3a2cdda13b56b5674eebc2e and it is fixed in upstream version 1.11.1.
Comment 2 Vincent Danen 2013-02-22 12:02:58 EST
Created krb5 tracking bugs for this issue Affects: fedora-all [bug 914756]
Comment 6 Fedora Update System 2013-03-15 21:31:31 EDT
krb5-1.10.2-9.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.
Comment 7 errata-xmlrpc 2013-03-18 14:04:30 EDT
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2013:0656 https://rhn.redhat.com/errata/RHSA-2013-0656.html
Comment 8 Fedora Update System 2013-03-22 17:08:17 EDT
krb5-1.10.3-14.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.
Comment 9 Jan Lieskovsky 2013-04-29 04:30:20 EDT
Kerberos 5 release krb5-1.9.5 announcement: http://web.mit.edu/kerberos/krb5-1.9/krb5-1.9.5.html#announcement