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CVE-2010-1321

26
FAUCET Score

CVE-2010-1321 describes a denial-of-service vulnerability in the GSS-API library of MIT Kerberos 5 (krb5) versions through 1.7.1 and 1.8 before 1.8.2, affecting products from vendors like Canonical, Debian, and Oracle. The flaw allows remote authenticated users to crash a daemon (e.g., kadmind) by sending a malformed AP-REQ message with a missing checksum. With a CVSS score of 6.8, this vulnerability is network-exploitable with low attack complexity, leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.7.1CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
>= 1.8, < 1.8.2CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
6.06CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.88%
Probability of exploitation in next 30 days
EPSS Percentile
93.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0688 is in the 98th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (16)

redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.6.0-sun-1:1.6.0.22-1jpp.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.5.0-ibm-1:1.5.0.12.2-1jpp.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.4.2-ibm-0:1.4.2.13.7-1jpp.3.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.6.0-ibm-1:1.6.0.9.0-1jpp.3.el4
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: java-1.4.2-ibm-0:1.4.2.13.8-1jpp.3.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: krb5-0:1.2.7-72
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: krb5-0:1.3.4-62.el4_8.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: krb5-0:1.6.1-36.el5_5.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: java-1.5.0-ibm-1:1.5.0.12.2-1jpp.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: java-1.6.0-ibm-1:1.6.0.9.0-1jpp.4.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Network Satellite Server v 5.4Fixed in: java-1.6.0-ibm-1:1.6.0.9.1-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.6.0-sun-1:1.6.0.22-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.5.0-ibm-1:1.5.0.12.2-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.4.2-ibm-0:1.4.2.13.7-1jpp.3.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.6.0-ibm-1:1.6.0.9.0-1jpp.3.el5
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.4.2-ibm-0:1.4.2.13.8-1jpp.2.el5
View patch

Vendor Advisories (1)

redhatCVE-2010-1321Important

krb5: null pointer dereference in GSS-API library leads to DoS (MITKRB5-SA-2010-005)

May 18, 2010

References

h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
Broken Link
lists.fedoraproject.org / pipermail/package-announce/2010-May/041615.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2010-May/041645.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2010-May/041654.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-06/msg00001.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-08/msg00001.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-10/msg00006.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2012-01/msg00002.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2012-01/msg00010.html
Mailing ListThird Party Advisory
marc.info
Issue TrackingThird Party Advisory
osvdb.org / 64744
Broken Link
secunia.com / advisories/39762
Third Party Advisory
secunia.com / advisories/39784
Third Party Advisory
secunia.com / advisories/39799
Third Party Advisory
secunia.com / advisories/39818
Third Party Advisory
secunia.com / advisories/39849
Third Party Advisory
secunia.com / advisories/40346
Third Party Advisory
secunia.com / advisories/40685
Third Party Advisory
secunia.com / advisories/41967
Third Party Advisory
secunia.com / advisories/42432
Third Party Advisory
secunia.com / advisories/42974
Third Party Advisory
secunia.com / advisories/43335
Third Party Advisory
secunia.com / advisories/44954
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11604
Broken LinkThird Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7198
Broken LinkThird Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7450
Broken LinkThird Party Advisory
support.avaya.com / css/P8/documents/100114315
Third Party Advisory
web.mit.edu / kerberos/advisories/MITKRB5-SA-2010-005.txt
PatchVendor Advisory
debian.org / security/2010/dsa-2052
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
oracle.com / technetwork/topics/security/cpujan2011-194091.html
Third Party Advisory
oracle.com / technetwork/topics/security/cpujuly2011-313328.html
Third Party Advisory
oracle.com / technetwork/topics/security/cpuoct2010-175626.html
Third Party Advisory
oracle.com / technetwork/topics/security/javacpuoct2010-176258.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0423.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0770.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0807.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0873.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0935.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0987.html
Third Party Advisory
redhat.com / support/errata/RHSA-2011-0152.html
Third Party Advisory
redhat.com / support/errata/RHSA-2011-0880.html
Third Party Advisory
securityfocus.com / archive/1/511331/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / archive/1/516397/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / bid/40235
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-940-1
Third Party Advisory
ubuntu.com / usn/USN-940-2
Third Party Advisory
us-cert.gov / cas/techalerts/TA10-287A.html
Third Party AdvisoryUS Government Resource
us-cert.gov / cas/techalerts/TA11-201A.html
Third Party AdvisoryUS Government Resource
vmware.com / security/advisories/VMSA-2011-0003.html
Third Party Advisory
vupen.com / english/advisories/2010/1177
Third Party Advisory
vupen.com / english/advisories/2010/1192
Third Party Advisory
vupen.com / english/advisories/2010/1193
Third Party Advisory
vupen.com / english/advisories/2010/1196
Third Party Advisory
vupen.com / english/advisories/2010/1222
Third Party Advisory
vupen.com / english/advisories/2010/1574
Third Party Advisory
vupen.com / english/advisories/2010/1882
Third Party Advisory
vupen.com / english/advisories/2010/3112
Third Party Advisory
vupen.com / english/advisories/2011/0134
Third Party Advisory