MEDIUM
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 of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command
Published Jan 1, 2013
5.0
MEDIUMCVSS 2.0
EPSS 3.15%
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 of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command.
Affected products
No data.
OR
- ≤ 0.2.3.24
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.2
- 0.0.3
- 0.0.4
- 0.0.5
- 0.0.6
- 0.0.6.1
- 0.0.6.2
- 0.0.7
- 0.0.7.1
- 0.0.7.2
- 0.0.7.3
- 0.0.8.1
- 0.0.9.1
- 0.0.9.2
- 0.0.9.3
- 0.0.9.4
- 0.0.9.5
- 0.0.9.6
- 0.0.9.7
- 0.0.9.8
- 0.0.9.9
- 0.0.9.10
- 0.1.0.10
- 0.1.0.11
- 0.1.0.12
- 0.1.0.13
- 0.1.0.14
- 0.1.0.15
- 0.1.0.16
- 0.1.0.17
- 0.1.1.20
- 0.1.1.21
- 0.1.1.22
- 0.1.1.23
- 0.1.1.24
- 0.1.1.25
- 0.1.1.26
- 0.1.2.13
- 0.1.2.14
- 0.1.2.15
- 0.1.2.16
- 0.1.2.17
- 0.1.2.18
- 0.1.2.19
- 0.2.0.30
- 0.2.0.31
- 0.2.0.32
- 0.2.0.33
- 0.2.0.34
- 0.2.0.35
- 0.2.2.18
- 0.2.2.19
- 0.2.2.20
- 0.2.2.21
- 0.2.2.22
- 0.2.2.23
- 0.2.2.24
- 0.2.2.25
- 0.2.2.26
- 0.2.2.27
- 0.2.2.28
- 0.2.2.29
- 0.2.2.30
- 0.2.2.31
- 0.2.2.32
- 0.2.2.33
- 0.2.2.34
- 0.2.2.35
- 0.2.2.36
- 0.2.2.37
- 0.2.2.38
- 0.2.3
- 0.2.3.13
- 0.2.3.14
- 0.2.3.15
- 0.2.3.16
- 0.2.3.17
- 0.2.3.18
- 0.2.3.19
- 0.2.3.20
- 0.2.3.21
- 0.2.3.22
- 0.2.3.23
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.15% 0.03146
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03146
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.15% (0.03146) | 87.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.15% (0.03146) | 86.21th | v5 (v2026.06.15) |
| Dec 18, 2025 | 1.01% (0.01009) | 76.53th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.48% (0.02484) | 83.91th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.01% (0.04009) | 80.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.48% (0.02484) | 84.22th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.76% (0.03761) | 92.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.76% (0.03761) | 90.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://openwall.com/lists/oss-security/2012/11/26/11 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/51329 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201301-03.xml vendor-advisoryx_refsource_GENTOO
- https://bugs.gentoo.org/show_bug.cgi?id=444804 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=880310 x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80289 vdb-entryx_refsource_XF
- https://gitweb.torproject.org/arma/tor.git/commitdiff/b9b54568c0bb64c32bd0b362954bdbc8c1234b16 x_refsource_CONFIRMPatch
- https://gitweb.torproject.org/tor.git/blob/release-0.2.3:/ReleaseNotes x_refsource_CONFIRM
- https://trac.torproject.org/projects/tor/ticket/6252 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://openwall.com/lists/oss-security/2012/11/26/11 | mailing-listx_refsource_MLIST | |
| http://secunia.com/advisories/51329 | third-party-advisoryx_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201301-03.xml | vendor-advisoryx_refsource_GENTOO | |
| https://bugs.gentoo.org/show_bug.cgi?id=444804 | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=880310 | x_refsource_CONFIRM | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/80289 | vdb-entryx_refsource_XF | |
| https://gitweb.torproject.org/arma/tor.git/commitdiff/b9b54568c0bb64c32bd0b362954bdbc8c1234b16 | x_refsource_CONFIRMPatch | |
| https://gitweb.torproject.org/tor.git/blob/release-0.2.3:/ReleaseNotes | x_refsource_CONFIRM | |
| https://trac.torproject.org/projects/tor/ticket/6252 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jan 1, 2013
Updated Aug 6, 2024
Reserved Oct 24, 2012
Link CVE-2012-5573
CISA Vulnrichment
Updated n/a