CVE-2006-2659
libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service (CPU consumption) via unknown vectors involving usernames that contain the "=" (equals) character, which is not properly handled during encoding.
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
libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service (CPU consumption) via unknown vectors involving usernames that contain the "=" (equals) character, which is not properly handled during encoding.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 2.40% probability · 83th percentile
- CISA KEV
- Not listed
- Affected
- double precision incorporated/courier mta
- Source
- cve@mitre.org
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=368834Patch
- http://secunia.com/advisories/20519
- http://secunia.com/advisories/20548
- http://secunia.com/advisories/20792
- http://secunia.com/advisories/21350
- http://security.gentoo.org/glsa/glsa-200608-06.xml
- http://securitytracker.com/id?1016248
- http://www.courier-mta.org/beta/patches/verp-fix/README.txtPatch
- http://www.debian.org/security/2006/dsa-1101
- http://www.securityfocus.com/bid/18345
- http://www.vupen.com/english/advisories/2006/2214
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26998
- https://usn.ubuntu.com/294-1/
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=368834Patch
- http://secunia.com/advisories/20519
- http://secunia.com/advisories/20548
- http://secunia.com/advisories/20792
- http://secunia.com/advisories/21350
- http://security.gentoo.org/glsa/glsa-200608-06.xml
- http://securitytracker.com/id?1016248
- http://www.courier-mta.org/beta/patches/verp-fix/README.txtPatch
- http://www.debian.org/security/2006/dsa-1101
- http://www.securityfocus.com/bid/18345
- http://www.vupen.com/english/advisories/2006/2214
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26998
- https://usn.ubuntu.com/294-1/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.