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Test ID:1.3.6.1.4.1.25623.1.0.63778
Category:Fedora Local Security Checks
Title:Fedora Core 10 FEDORA-2009-2852 (krb5)
Summary:NOSUMMARY
Description:Description:
The remote host is missing an update to krb5
announced via advisory FEDORA-2009-2852.

Update Information:

This update incorporates patches to fix potential read overflow and NULL pointer
dereferences in the implementation of the SPNEGO GSSAPI mechanism
(CVE-2009-0844, CVE-2009-0845), attempts to free an uninitialized pointer during
protocol parsing (CVE-2009-0846), and a bug in length validation during protocol
parsing (CVE-2009-0847).

ChangeLog:

* Tue Apr 7 2009 Nalin Dahyabhai 1.6.3-18
- add patches for read overflow and null pointer dereference in the
implementation of the SPNEGO mechanism (CVE-2009-0844, CVE-2009-0845)
- add patch for attempt to free uninitialized pointer in libkrb5
(CVE-2009-0846)
- add patch to fix length validation bug in libkrb5 (CVE-2009-0847)
* Tue Mar 17 2009 Nalin Dahyabhai 1.6.3-17
- libgssapi_krb5: backport fix for some errors which can occur when
we fail to set up the server half of a context (CVE-2009-0845)

References:

[ 1 ] Bug #490634 - CVE-2009-0845 krb5: Null pointer dereference in GSSAPI SPNEGO security mechanism
https://bugzilla.redhat.com/show_bug.cgi?id=490634
[ 2 ] Bug #491033 - CVE-2009-0844 krb5: buffer over-read in SPNEGO GSS-API mechanism (MITKRB5-SA-2009-001)
https://bugzilla.redhat.com/show_bug.cgi?id=491033
[ 3 ] Bug #491036 - CVE-2009-0846 krb5: ASN.1 decoder can free uninitialized pointer when decoding an invalid encoding (MITKRB5-SA-2009-002)
https://bugzilla.redhat.com/show_bug.cgi?id=491036
[ 4 ] Bug #491034 - CVE-2009-0847 krb5: incorrect length check inside ASN.1 decoder (MITKRB5-SA-2009-001)
https://bugzilla.redhat.com/show_bug.cgi?id=491034

Solution: Apply the appropriate updates.

This update can be installed with the yum update program. Use
su -c 'yum update krb5' at the command line.
For more information, refer to Managing Software with yum,
available at http://docs.fedoraproject.org/yum/.

http://www.securityspace.com/smysecure/catid.html?in=FEDORA-2009-2852

CVSS Score:
10.0

CVSS Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2009-0844
Bugtraq: 20090407 MITKRB5-SA-2009-001: multiple vulnerabilities in SPNEGO, ASN.1 decoder [CVE-2009-0844 CVE-2009-0845 CVE-2009-0847] (Google Search)
http://www.securityfocus.com/archive/1/archive/1/502526/100/0/threaded
Bugtraq: 20090407 rPSA-2009-0058-1 krb5 krb5-server krb5-services krb5-test krb5-workstation (Google Search)
http://www.securityfocus.com/archive/1/archive/1/502546/100/0/threaded
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html
http://security.gentoo.org/glsa/glsa-200904-09.xml
http://www.mandriva.com/security/advisories?name=MDVSA-2009:098
http://www.redhat.com/support/errata/RHSA-2009-0408.html
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
http://www.ubuntu.com/usn/usn-755-1
Cert/CC Advisory: TA09-133A
http://www.us-cert.gov/cas/techalerts/TA09-133A.html
CERT/CC vulnerability note: VU#662091
http://www.kb.cert.org/vuls/id/662091
BugTraq ID: 34408
http://www.securityfocus.com/bid/34408
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6339
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9474
http://www.securitytracker.com/id?1021867
http://secunia.com/advisories/34640
http://secunia.com/advisories/34594
http://secunia.com/advisories/34617
http://secunia.com/advisories/34622
http://secunia.com/advisories/34630
http://secunia.com/advisories/34637
http://secunia.com/advisories/34628
http://secunia.com/advisories/34734
http://secunia.com/advisories/35074
http://www.vupen.com/english/advisories/2009/0960
http://www.vupen.com/english/advisories/2009/0976
http://www.vupen.com/english/advisories/2009/1106
http://www.vupen.com/english/advisories/2009/1057
http://www.vupen.com/english/advisories/2009/1297
http://www.vupen.com/english/advisories/2009/2248
Common Vulnerability Exposure (CVE) ID: CVE-2009-0845
http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
BugTraq ID: 34257
http://www.securityfocus.com/bid/34257
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10044
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6449
http://secunia.com/advisories/34347
http://www.vupen.com/english/advisories/2009/0847
XForce ISS Database: kerberos-spnego-dos(49448)
https://exchange.xforce.ibmcloud.com/vulnerabilities/49448
Common Vulnerability Exposure (CVE) ID: CVE-2009-0846
Bugtraq: 20090407 MITKRB5-SA-2009-002: ASN.1 decoder frees uninitialized pointer [CVE-2009-0846] (Google Search)
http://www.securityfocus.com/archive/1/archive/1/502527/100/0/threaded
Bugtraq: 20090701 VMSA-2009-0008 ESX Service Console update for krb5 (Google Search)
http://www.securityfocus.com/archive/1/archive/1/504683/100/0/threaded
http://lists.vmware.com/pipermail/security-announce/2009/000059.html
HPdes Security Advisory: HPSBUX02421
http://marc.info/?l=bugtraq&m=124896429301168&w=2
HPdes Security Advisory: SSRT090047
HPdes Security Advisory: HPSBOV02682
http://marc.info/?l=bugtraq&m=130497213107107&w=2
HPdes Security Advisory: SSRT100495
RedHat Security Advisories: RHSA-2009:0409
http://rhn.redhat.com/errata/RHSA-2009-0409.html
RedHat Security Advisories: RHSA-2009:0410
http://rhn.redhat.com/errata/RHSA-2009-0410.html
BugTraq ID: 34409
http://www.securityfocus.com/bid/34409
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10694
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5483
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6301
http://www.securitytracker.com/id?1021994
http://secunia.com/advisories/34598
http://secunia.com/advisories/35667
http://www.vupen.com/english/advisories/2009/2084
Common Vulnerability Exposure (CVE) ID: CVE-2009-0847
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6387
http://www.securitytracker.com/id?1021993
CopyrightCopyright (c) 2009 E-Soft Inc. http://www.securityspace.com

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