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- From: Salvatore Bonaccorso <carnil AT debian.org>
- To: debian-security-announce AT lists.debian.org
- Subject: [IT-SecNots] [SECURITY] [DSA 3000-1] krb5 security update
- Date: Sat, 09 Aug 2014 14:54:58 +0000
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Debian Security Advisory DSA-3000-1 security AT debian.org
http://www.debian.org/security/ Salvatore Bonaccorso
August 09, 2014 http://www.debian.org/security/faq
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Package : krb5
CVE ID : CVE-2014-4341 CVE-2014-4342 CVE-2014-4343 CVE-2014-4344
CVE-2014-4345
Debian Bug : 753624 753625 755520 755521 757416
Several vulnerabilities were discovered in krb5, the MIT implementation
of Kerberos. The Common Vulnerabilities and Exposures project identifies
the following problems:
CVE-2014-4341
An unauthenticated remote attacker with the ability to inject
packets into a legitimately established GSSAPI application session
can cause a program crash due to invalid memory references when
attempting to read beyond the end of a buffer.
CVE-2014-4342
An unauthenticated remote attacker with the ability to inject
packets into a legitimately established GSSAPI application session
can cause a program crash due to invalid memory references when
reading beyond the end of a buffer or by causing a null pointer
dereference.
CVE-2014-4343
An unauthenticated remote attacker with the ability to spoof packets
appearing to be from a GSSAPI acceptor can cause a double-free
condition in GSSAPI initiators (clients) which are using the SPNEGO
mechanism, by returning a different underlying mechanism than was
proposed by the initiator. A remote attacker could exploit this flaw
to cause an application crash or potentially execute arbitrary code.
CVE-2014-4344
An unauthenticated or partially authenticated remote attacker can
cause a NULL dereference and application crash during a SPNEGO
negotiation by sending an empty token as the second or later context
token from initiator to acceptor.
CVE-2014-4345
When kadmind is configured to use LDAP for the KDC database, an
authenticated remote attacker can cause it to perform an
out-of-bounds write (buffer overflow).
For the stable distribution (wheezy), these problems have been fixed in
version 1.10.1+dfsg-5+deb7u2.
For the unstable distribution (sid), these problems have been fixed in
version 1.12.1+dfsg-7.
We recommend that you upgrade your krb5 packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce AT lists.debian.org
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- [IT-SecNots] [SECURITY] [DSA 3000-1] krb5 security update, Salvatore Bonaccorso, 09.08.2014
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