CVE-2009-0845

The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5 UNKNOWN
NETWORK
LOW
AV:N/AC:L/Au:N/C:N/I:N/A:P
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 96%
VendorProductVersion
mitkerberos
5-1.6.3
mitkerberos_5
1.5
mitkerberos_5
1.5.1
mitkerberos_5
1.5.2
mitkerberos_5
1.5.3
mitkerberos_5
1.6
mitkerberos_5
1.6.1
mitkerberos_5
1.6.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
krb5
bullseye (security)
1.18.3-6+deb11u5
fixed
bullseye
1.18.3-6+deb11u5
fixed
etch
not-affected
bookworm
1.20.1-2+deb12u2
fixed
bookworm (security)
1.20.1-2+deb12u2
fixed
sid
1.21.3-3
fixed
trixie
1.21.3-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
krb5
intrepid
Fixed 1.6.dfsg.4~beta1-3ubuntu0.1
released
hardy
Fixed 1.6.dfsg.3~beta1-2ubuntu1.1
released
gutsy
Fixed 1.6.dfsg.1-7ubuntu0.2
released
dapper
not-affected
Common Weakness Enumeration
References
http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
http://secunia.com/advisories/34347
http://secunia.com/advisories/34594
http://secunia.com/advisories/34617
http://secunia.com/advisories/34622
http://secunia.com/advisories/34628
http://secunia.com/advisories/34630
http://secunia.com/advisories/34637
http://secunia.com/advisories/34640
http://secunia.com/advisories/34734
http://secunia.com/advisories/35074
http://security.gentoo.org/glsa/glsa-200904-09.xml
http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084
http://src.mit.edu/fisheye/changelog/krb5/?cs=22084
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
http://support.apple.com/kb/HT3549
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
http://wiki.rpath.com/Advisories:rPSA-2009-0058
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://www-01.ibm.com/support/docview.wss?uid=swg21396120
http://www.kb.cert.org/vuls/id/662091
http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
http://www.redhat.com/support/errata/RHSA-2009-0408.html
http://www.securityfocus.com/archive/1/502526/100/0/threaded
http://www.securityfocus.com/archive/1/502546/100/0/threaded
http://www.securityfocus.com/bid/34257
http://www.securitytracker.com/id?1021867
http://www.ubuntu.com/usn/usn-755-1
http://www.us-cert.gov/cas/techalerts/TA09-133A.html
http://www.vupen.com/english/advisories/2009/0847
http://www.vupen.com/english/advisories/2009/0976
http://www.vupen.com/english/advisories/2009/1057
http://www.vupen.com/english/advisories/2009/1106
http://www.vupen.com/english/advisories/2009/1297
http://www.vupen.com/english/advisories/2009/2248
https://exchange.xforce.ibmcloud.com/vulnerabilities/49448
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
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://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
http://secunia.com/advisories/34347
http://secunia.com/advisories/34594
http://secunia.com/advisories/34617
http://secunia.com/advisories/34622
http://secunia.com/advisories/34628
http://secunia.com/advisories/34630
http://secunia.com/advisories/34637
http://secunia.com/advisories/34640
http://secunia.com/advisories/34734
http://secunia.com/advisories/35074
http://security.gentoo.org/glsa/glsa-200904-09.xml
http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084
http://src.mit.edu/fisheye/changelog/krb5/?cs=22084
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
http://support.apple.com/kb/HT3549
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
http://wiki.rpath.com/Advisories:rPSA-2009-0058
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://www-01.ibm.com/support/docview.wss?uid=swg21396120
http://www.kb.cert.org/vuls/id/662091
http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
http://www.redhat.com/support/errata/RHSA-2009-0408.html
http://www.securityfocus.com/archive/1/502526/100/0/threaded
http://www.securityfocus.com/archive/1/502546/100/0/threaded
http://www.securityfocus.com/bid/34257
http://www.securitytracker.com/id?1021867
http://www.ubuntu.com/usn/usn-755-1
http://www.us-cert.gov/cas/techalerts/TA09-133A.html
http://www.vupen.com/english/advisories/2009/0847
http://www.vupen.com/english/advisories/2009/0976
http://www.vupen.com/english/advisories/2009/1057
http://www.vupen.com/english/advisories/2009/1106
http://www.vupen.com/english/advisories/2009/1297
http://www.vupen.com/english/advisories/2009/2248
https://exchange.xforce.ibmcloud.com/vulnerabilities/49448
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
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html