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CVE-2010-1192

Status Candidate

Overview

libESMTP, probably 1.0.4 and earlier, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Related Files

Mandriva Linux Security Advisory 2010-195
Posted Oct 4, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-195 - libESMTP, probably 1.0.4 and earlier, does not properly handle a backslashed 0 field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408. The match_component function in smtp-tls.c in libESMTP 1.0.3.r1, and possibly other versions including 1.0.4, treats two strings as equal if one is a substring of the other, which allows remote attackers to spoof trusted certificates via a crafted subjectAltName.

tags | advisory, remote, arbitrary, spoof
systems | linux, mandriva
advisories | CVE-2010-1192, CVE-2010-1194
SHA-256 | 7d2a2655d0bc856465b92c6c2f680298e7c00c413037228658babf2ed384b5d1
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