HOME VULNERABILITIESCVE-2010-1321

MEDIUM

CVE-2010-1321

CWE-476Published: May 19, 2010· Updated: Jun 16, 2026

6.8

CVSS v3.1

Official Description

The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.

Technical Analysis

CVE-2010-1321 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.

User Interaction

Scope

Impact

ConfidentialityNone

IntegrityNone

AvailabilityC

AV:N/AC:L/Au:S/C:N/I:N/A:C

Affected Vendors & Products

Canonical1 product(s)

ubuntu linux

Debian1 product(s)

debian linux

Fedora1 product(s)

fedora

mit1 product(s)

kerberos 5

openSUSE1 product(s)

opensuse

Oracle1 product(s)

database server

SUSE1 product(s)

linux enterprise server

Source: NVD CPE · 18 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-005.txt

PATCHhttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-005.txt

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2010-May/041615.html

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2010-May/041645.html

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2010-May/041654.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html

ADVISORYhttp://marc.info/?l=bugtraq&m=134254866602253&w=2

ADVISORYhttp://secunia.com/advisories/39762

ADVISORYhttp://secunia.com/advisories/39784

ADVISORYhttp://secunia.com/advisories/39799

ADVISORYhttp://secunia.com/advisories/39818

ADVISORYhttp://secunia.com/advisories/39849

ADVISORYhttp://secunia.com/advisories/40346

ADVISORYhttp://secunia.com/advisories/40685

ADVISORYhttp://secunia.com/advisories/41967

ADVISORYhttp://secunia.com/advisories/42432

ADVISORYhttp://secunia.com/advisories/42974

ADVISORYhttp://secunia.com/advisories/43335

ADVISORYhttp://secunia.com/advisories/44954

ADVISORYhttp://support.avaya.com/css/P8/documents/100114315

ADVISORYhttp://www.debian.org/security/2010/dsa-2052

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:100

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujuly2011-313328.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/javacpuoct2010-176258.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0423.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0770.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0807.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0873.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0935.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0987.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2011-0152.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2011-0880.html

ADVISORYhttp://www.securityfocus.com/archive/1/511331/100/0/threaded

ADVISORYhttp://www.securityfocus.com/archive/1/516397/100/0/threaded

ADVISORYhttp://www.securityfocus.com/bid/40235

ADVISORYhttp://www.ubuntu.com/usn/USN-940-1

ADVISORYhttp://www.ubuntu.com/usn/USN-940-2

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA10-287A.html

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA11-201A.html

ADVISORYhttp://www.vmware.com/security/advisories/VMSA-2011-0003.html

ADVISORYhttp://www.vupen.com/english/advisories/2010/1177

ADVISORYhttp://www.vupen.com/english/advisories/2010/1192

ADVISORYhttp://www.vupen.com/english/advisories/2010/1193

ADVISORYhttp://www.vupen.com/english/advisories/2010/1196

ADVISORYhttp://www.vupen.com/english/advisories/2010/1222

ADVISORYhttp://www.vupen.com/english/advisories/2010/1574

ADVISORYhttp://www.vupen.com/english/advisories/2010/1882

ADVISORYhttp://www.vupen.com/english/advisories/2010/3112

ADVISORYhttp://www.vupen.com/english/advisories/2011/0134

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11604

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7198

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7450

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2010-May/041615.html

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2010-May/041645.html

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2010-May/041654.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html

ADVISORYhttp://marc.info/?l=bugtraq&m=134254866602253&w=2

ADVISORYhttp://secunia.com/advisories/39762

ADVISORYhttp://secunia.com/advisories/39784

ADVISORYhttp://secunia.com/advisories/39799

ADVISORYhttp://secunia.com/advisories/39818

ADVISORYhttp://secunia.com/advisories/39849

ADVISORYhttp://secunia.com/advisories/40346

ADVISORYhttp://secunia.com/advisories/40685

ADVISORYhttp://secunia.com/advisories/41967

ADVISORYhttp://secunia.com/advisories/42432

ADVISORYhttp://secunia.com/advisories/42974

ADVISORYhttp://secunia.com/advisories/43335

ADVISORYhttp://secunia.com/advisories/44954

ADVISORYhttp://support.avaya.com/css/P8/documents/100114315

ADVISORYhttp://www.debian.org/security/2010/dsa-2052

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:100

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujuly2011-313328.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/javacpuoct2010-176258.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0423.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0770.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0807.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0873.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0935.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2010-0987.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2011-0152.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2011-0880.html

ADVISORYhttp://www.securityfocus.com/archive/1/511331/100/0/threaded

ADVISORYhttp://www.securityfocus.com/archive/1/516397/100/0/threaded

ADVISORYhttp://www.securityfocus.com/bid/40235

ADVISORYhttp://www.ubuntu.com/usn/USN-940-1

ADVISORYhttp://www.ubuntu.com/usn/USN-940-2

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA10-287A.html

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA11-201A.html

ADVISORYhttp://www.vmware.com/security/advisories/VMSA-2011-0003.html

ADVISORYhttp://www.vupen.com/english/advisories/2010/1177

ADVISORYhttp://www.vupen.com/english/advisories/2010/1192

ADVISORYhttp://www.vupen.com/english/advisories/2010/1193

ADVISORYhttp://www.vupen.com/english/advisories/2010/1196

ADVISORYhttp://www.vupen.com/english/advisories/2010/1222

ADVISORYhttp://www.vupen.com/english/advisories/2010/1574

ADVISORYhttp://www.vupen.com/english/advisories/2010/1882

ADVISORYhttp://www.vupen.com/english/advisories/2010/3112

ADVISORYhttp://www.vupen.com/english/advisories/2011/0134

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11604

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7198

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7450

All References (118)

→

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02257427Broken Link

→

http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041615.htmlThird Party Advisory

→

http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041645.htmlThird Party Advisory

→

http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041654.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.htmlMailing List · Third Party Advisory

→

http://marc.info/?l=bugtraq&m=134254866602253&w=2Issue Tracking · Third Party Advisory

→

http://osvdb.org/64744Broken Link

→

http://secunia.com/advisories/39762Third Party Advisory

→

http://secunia.com/advisories/39784Third Party Advisory

→

http://secunia.com/advisories/39799Third Party Advisory

→

http://secunia.com/advisories/39818Third Party Advisory

Quick Facts

CVE IDCVE-2010-1321

CVSS Score6.8 / 10

SeverityMEDIUM

WeaknessCWE-476

CISA KEVNo

Affected7 vendor(s)

PublishedMay 19, 2010

Related CVEs (CWE-476)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2010-1321 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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