National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2017-15088 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/101594 Third Party Advisory VDB Entry
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871698 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1504045 Issue Tracking Patch Third Party Advisory
https://github.com/krb5/krb5/commit/fbb687db1088ddd894d975996e5f6a4252b9a2b4 Issue Tracking Patch Third Party Advisory
https://github.com/krb5/krb5/pull/707 Issue Tracking Third Party Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:mit:kerberos:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
5-1.15.2


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-15088
NVD Published Date:
11/23/2017
NVD Last Modified:
12/12/2017