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Vulnerability record · CVE-2011-0284 · published 20 March 2011

CVE-2011-0284: Mit kerberos 5 vulnerability

Mit · Kerberos 5

Double free vulnerability in the prepare_error_as function in do_as_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 through 1.9, when the PKINIT feature is enabled, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via an e_data field containing typed data.

7.6 CVSS 2.0 High EPSS 8.3% · top 5.3% CWE-399 · CWE-399
7.6CVSS 2.0 base score
8.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
46References
16 Jun 2026Last modified by NVD

Description

Double free vulnerability in the prepare_error_as function in do_as_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 through 1.9, when the PKINIT feature is enabled, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via an e_data field containing typed data.

AV:N/AC:H/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056413.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056573.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056579.html
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://osvdb.org/71183
http://secunia.com/advisories/43700
http://secunia.com/advisories/43760
http://secunia.com/advisories/43783 Vendor Advisory
http://secunia.com/advisories/43881
http://securitytracker.com/id?1025216
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-003.txt PatchVendor Advisory
http://www.kb.cert.org/vuls/id/943220 PatchUS Government Resource
http://www.mandriva.com/security/advisories?name=MDVSA-2011:048
http://www.redhat.com/support/errata/RHSA-2011-0356.html
http://www.securityfocus.com/archive/1/517029/100/0/threaded
http://www.securityfocus.com/bid/46881
http://www.ubuntu.com/usn/USN-1088-1
http://www.vupen.com/english/advisories/2011/0672 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0673 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0680
http://www.vupen.com/english/advisories/2011/0722
http://www.vupen.com/english/advisories/2011/0763
https://exchange.xforce.ibmcloud.com/vulnerabilities/66101
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056413.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056573.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056579.html
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://osvdb.org/71183
http://secunia.com/advisories/43700
http://secunia.com/advisories/43760
http://secunia.com/advisories/43783 Vendor Advisory
http://secunia.com/advisories/43881
http://securitytracker.com/id?1025216
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-003.txt PatchVendor Advisory
http://www.kb.cert.org/vuls/id/943220 PatchUS Government Resource
http://www.mandriva.com/security/advisories?name=MDVSA-2011:048
http://www.redhat.com/support/errata/RHSA-2011-0356.html
http://www.securityfocus.com/archive/1/517029/100/0/threaded
http://www.securityfocus.com/bid/46881
http://www.ubuntu.com/usn/USN-1088-1

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2011-0285Mit kerberos 5 improper input validation vulnerabilityThe process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT Kerberos 5 (aka krb5) 1.7 through 1.9 frees an …EPSS 21%10.0CVE-2009-4212Mit kerberos vulnerabilityMultiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3,…EPSS 7.6%10.0CVE-2009-0846Mit kerberos 5 vulnerabilityThe asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 a…EPSS 8.9%10.0CVE-2008-0947Mit kerberos 5 memory buffer overflow vulnerabilityBuffer overflow in the RPC library used by libgssrpc and kadmind in MIT Kerberos 5 (krb5) 1.4 through 1.6.3 allows remote attackers to execute arbitr…EPSS 8.8%10.0CVE-2007-5902Mit kerberos 5 vulnerabilityInteger overflow in the svcauth_gss_get_principal function in lib/rpc/svc_auth_gss.c in MIT Kerberos 5 (krb5) allows remote attackers to have an unkn…EPSS 5.9%10.0CVE-2007-4743Mit kerberos 5 memory buffer overflow vulnerabilityThe original patch for CVE-2007-3999 in svc_auth_gss.c in the RPCSEC_GSS RPC library in MIT Kerberos 5 (krb5) 1.4 through 1.6.2, as used by the Kerbe…EPSS 4.6%10.0CVE-2007-3999Mit kerberos 5 memory buffer overflow vulnerabilityStack-based buffer overflow in the svcauth_gss_validate function in lib/rpc/svc_auth_gss.c in the RPCSEC_GSS RPC library (librpcsecgss) in MIT Kerber…EPSS 11%10.0CVE-2007-2442Mit kerberos 5 vulnerabilityThe gssrpc__svcauth_gssapi function in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote attackers to execute arbitrary c…EPSS 11%

Source: NIST National Vulnerability Database (record CVE-2011-0284), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.