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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.40% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 83.6% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2006-05-30 19:00Z20 YR AGO
- Last updated
- 2024-08-07 17:58Z2 YR AGO
- Reserved
- 2006-05-30
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- a38a87184689548bbcf1d51bab32312c51212bd3497267c1e1a115273902e80e
05 Affected products
06 References
- bugs.debian.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=368834
- exchange.xforce.ibmcloud.comcourier-usernames-dos(26998)https://exchange.xforce.ibmcloud.com/vulnerabilities/26998
- security.gentoo.orgGLSA-200608-06http://security.gentoo.org/glsa/glsa-200608-06.xml
- www.securityfocus.com18345http://www.securityfocus.com/bid/18345
- secunia.com20548http://secunia.com/advisories/20548
- secunia.com20519http://secunia.com/advisories/20519
- www.courier-mta.orghttp://www.courier-mta.org/beta/patches/verp-fix/README.txt
- secunia.com21350http://secunia.com/advisories/21350
- www.debian.orgDSA-1101http://www.debian.org/security/2006/dsa-1101
- www.vupen.comADV-2006-2214http://www.vupen.com/english/advisories/2006/2214
- usn.ubuntu.comUSN-294-1https://usn.ubuntu.com/294-1/
- secunia.com20792http://secunia.com/advisories/20792
- securitytracker.com1016248http://securitytracker.com/id?1016248
07 Fixed in
Debian 12
- courier Fixed in 0.53.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- courier Fixed in 0.53.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- courier Fixed in 0.53.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.