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LIN7-9223 : Security Advisory - krb5 - CVE-2017-15088

Created: Nov 30, 2017    Updated: Sep 8, 2018
Resolved Date: Jan 17, 2018
Previous ID: LIN6-14047
Found In Version: 7.0.0.26
Fix Version: 7.0.0.28
Severity: Standard
Applicable for: Wind River Linux 7
Component/s: Userspace

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.

https://nvd.nist.gov/vuln/detail/CVE-2017-15088

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