CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:S/C:C/I:C/A:C
AI Score
Confidence
High
EPSS
Percentile
96.3%
Debian Security Advisory DSA-3000-1 [email protected]
http://www.debian.org/security/ Salvatore Bonaccorso
August 09, 2014 http://www.debian.org/security/faq
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: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 7 | sparc | libgssrpc4 | < 1.10.1+dfsg-5+deb7u2 | libgssrpc4_1.10.1+dfsg-5+deb7u2_sparc.deb |
Debian | 6 | amd64 | libkrb5support0 | < 1.8.3+dfsg-4squeeze8 | libkrb5support0_1.8.3+dfsg-4squeeze8_amd64.deb |
Debian | 7 | ia64 | libkadm5srv-mit8 | < 1.10.1+dfsg-5+deb7u2 | libkadm5srv-mit8_1.10.1+dfsg-5+deb7u2_ia64.deb |
Debian | 7 | s390 | libkrb5-dbg | < 1.10.1+dfsg-5+deb7u2 | libkrb5-dbg_1.10.1+dfsg-5+deb7u2_s390.deb |
Debian | 7 | mips | libkrb5support0 | < 1.10.1+dfsg-5+deb7u2 | libkrb5support0_1.10.1+dfsg-5+deb7u2_mips.deb |
Debian | 7 | armhf | libkrb5-dev | < 1.10.1+dfsg-5+deb7u2 | libkrb5-dev_1.10.1+dfsg-5+deb7u2_armhf.deb |
Debian | 6 | i386 | krb5-user | < 1.8.3+dfsg-4squeeze8 | krb5-user_1.8.3+dfsg-4squeeze8_i386.deb |
Debian | 6 | amd64 | libkdb5-4 | < 1.8.3+dfsg-4squeeze8 | libkdb5-4_1.8.3+dfsg-4squeeze8_amd64.deb |
Debian | 7 | kfreebsd-amd64 | libkrb5support0 | < 1.10.1+dfsg-5+deb7u2 | libkrb5support0_1.10.1+dfsg-5+deb7u2_kfreebsd-amd64.deb |
Debian | 6 | amd64 | libgssrpc4 | < 1.8.3+dfsg-4squeeze8 | libgssrpc4_1.8.3+dfsg-4squeeze8_amd64.deb |