← Vulnerability feed

Vulnerability record · CVE-2017-15088 · published 23 November 2017

CVE-2017-15088: Mit kerberos 5 stack-based buffer overflow vulnerability

Mit · Kerberos 5

plugins/preauth/pkinit/pkinit_crypto_openssl.c in MIT Kerberos 5 (aka krb5) through 1.15.2 mishandles Distinguished Name (DN) fields, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) in situations involving untrusted X.509 data, related to the get_matching_data and X509_NAME_oneline_ex functions. NOTE: this has security relevance only in use cases outside of the MIT Kerberos distribution, e.g., the use of get_matching_data in KDC certauth plugin code that is specific to Red Hat.

9.8 CVSS 3.1 Critical EPSS 8.3% · top 5.3% CWE-121 · Stack-based buffer overflowCWE-119 · Memory buffer overflow
9.8CVSS 3.1 base score, v2 7.5
8.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

plugins/preauth/pkinit/pkinit_crypto_openssl.c in MIT Kerberos 5 (aka krb5) through 1.15.2 mishandles Distinguished Name (DN) fields, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) in situations involving untrusted X.509 data, related to the get_matching_data and X509_NAME_oneline_ex functions. NOTE: this has security relevance only in use cases outside of the MIT Kerberos distribution, e.g., the use of get_matching_data in KDC certauth plugin code that is specific to Red Hat.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/101594 Third Party AdvisoryVDB Entry
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871698 Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1504045 Issue TrackingPatchThird Party Advisory
https://github.com/krb5/krb5/commit/fbb687db1088ddd894d975996e5f6a4252b9a2b4 Issue TrackingPatchThird Party Advisory
https://github.com/krb5/krb5/pull/707 PatchThird Party Advisory
http://www.securityfocus.com/bid/101594 Third Party AdvisoryVDB Entry
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871698 Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1504045 Issue TrackingPatchThird Party Advisory
https://github.com/krb5/krb5/commit/fbb687db1088ddd894d975996e5f6a4252b9a2b4 Issue TrackingPatchThird Party Advisory
https://github.com/krb5/krb5/pull/707 PatchThird Party Advisory

Track CVE-2017-15088 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

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-2017-15088), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.