CVE-2012-5573
The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial
02 Description
The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial
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
- 3.14% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 87.8% 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
- 2013-01-01 11:00Z13 YR AGO
- Last updated
- 2024-08-06 21:14Z2 YR AGO
- Reserved
- 2012-10-24
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 7b4c56530d6f71506b9bf4a631833af9438de0dc5a9c30e3784c60cd3eb709b5
05 Affected products
06 References
- security.gentoo.orgGLSA-201301-03http://security.gentoo.org/glsa/glsa-201301-03.xml
- trac.torproject.orghttps://trac.torproject.org/projects/tor/ticket/6252
- bugs.gentoo.orghttps://bugs.gentoo.org/show_bug.cgi?id=444804
- secunia.com51329http://secunia.com/advisories/51329
- gitweb.torproject.orghttps://gitweb.torproject.org/arma/tor.git/commitdiff/b9b54568c0bb64c32bd0b362954bdbc8c1234b16
- openwall.com[oss-security] 20121126 Re: tor DoS via SENDME cellshttp://openwall.com/lists/oss-security/2012/11/26/11
- gitweb.torproject.orghttps://gitweb.torproject.org/tor.git/blob/release-0.2.3:/ReleaseNotes
- exchange.xforce.ibmcloud.comtor-sendme-dos(80289)https://exchange.xforce.ibmcloud.com/vulnerabilities/80289
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=880310
07 Fixed in
Debian 12
- tor Fixed in 0.2.3.25-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- tor Fixed in 0.2.3.25-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- tor Fixed in 0.2.3.25-1
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.