CVE-2012-2374
CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting
02 Description
CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting
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
- 1.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 71.1% 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
- 2012-05-23 20:00Z14 YR AGO
- Last updated
- 2024-08-06 19:34Z2 YR AGO
- Reserved
- 2012-04-19
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- a1249e6238e85d2c85074201cba60f73cebd6f23cc61037a36ad5c7c206831aa
05 Affected products
06 References
- www.securityfocus.com53612http://www.securityfocus.com/bid/53612
- www.tornadoweb.orghttp://www.tornadoweb.org/documentation/releases/v2.2.1.html
- secunia.com49185http://secunia.com/advisories/49185
- www.openwall.com[oss-security] 20120518 CVE Request -- Tornado (python-tornado): Tornado v2.2.1 tornado.web.RequestHandler.set_header() fix to prevent header injectionhttp://www.openwall.com/lists/oss-security/2012/05/18/6
- openwall.com[oss-security] 20120518 Re: CVE Request -- Tornado (python-tornado): Tornado v2.2.1 tornado.web.RequestHandler.set_header() fix to prevent header injectionhttp://openwall.com/lists/oss-security/2012/05/18/12
07 Fixed in
Debian 12
- python-tornado Fixed in 2.1.0-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- python-tornado Fixed in 2.1.0-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- python-tornado Fixed in 2.1.0-3
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.