CVE-2014-3556
The STARTTLS implementation in mail/ngx_mail_smtp_handler.c in the SMTP proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 does not properly restrict I/O buffering, which allows
02 Description
The STARTTLS implementation in mail/ngx_mail_smtp_handler.c in the SMTP proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 does not properly restrict I/O buffering, which allows
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
- 7.83% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.6% 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 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
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
- 2014-12-29 20:00Z11 YR AGO
- Last updated
- 2024-08-06 10:50Z2 YR AGO
- Reserved
- 2014-05-14
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
- Data version
- 5.1
- Document digest
- 1f3343a39cc4417cac77707f012b3be272a8ae711a928b5e16b8c719bcc92c62
05 Affected products
06 References
- marc.infoHPSBOV03227http://marc.info/?l=bugtraq&m=142103967620673&w=2
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1126891
- mailman.nginx.org[nginx-announce] 20140805 nginx security advisory (CVE-2014-3556)http://mailman.nginx.org/pipermail/nginx-announce/2014/000144.html
- nginx.orghttp://nginx.org/download/patch.2014.starttls.txt
07 Fixed in
Debian 12
- nginx Fixed in 1.6.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- nginx Fixed in 1.6.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- nginx Fixed in 1.6.1-1
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.