CVE-2009-4565
sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 2.40% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-310
- Affected
- sendmail/sendmail
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
- http://marc.info/?l=bugtraq&m=126953289726317&w=2
- http://secunia.com/advisories/37998Vendor Advisory
- http://secunia.com/advisories/38314
- http://secunia.com/advisories/38915
- http://secunia.com/advisories/39088
- http://secunia.com/advisories/40109
- http://secunia.com/advisories/43366
- http://security.gentoo.org/glsa/glsa-201206-30.xml
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021797.1-1
- http://www.debian.org/security/2010/dsa-1985
- http://www.redhat.com/support/errata/RHSA-2011-0262.html
- http://www.securityfocus.com/bid/37543
- http://www.sendmail.org/releases/8.14.4Patch
- http://www.vupen.com/english/advisories/2009/3661Patch, Vendor Advisory
- http://www.vupen.com/english/advisories/2010/0719
- http://www.vupen.com/english/advisories/2010/1386
- http://www.vupen.com/english/advisories/2011/0415
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10255
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11822
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
- http://marc.info/?l=bugtraq&m=126953289726317&w=2
- http://secunia.com/advisories/37998Vendor Advisory
- http://secunia.com/advisories/38314
- http://secunia.com/advisories/38915
- http://secunia.com/advisories/39088
- http://secunia.com/advisories/40109
- http://secunia.com/advisories/43366
- http://security.gentoo.org/glsa/glsa-201206-30.xml
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021797.1-1
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.