MEDIUM
Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list
Published Jun 14, 2011
5.0
MEDIUMCVSS 2.0
EPSS 2.82%
Description
Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.
Affected products
No data.
OR
- ≤ 0.2.1.29
- 0.0.2
- 0.0.2_pre13
- 0.0.2_pre14
- 0.0.2_pre15
- 0.0.2_pre16
- 0.0.2_pre17
- 0.0.2_pre18
- 0.0.2_pre19
- 0.0.2_pre20
- 0.0.2_pre21
- 0.0.2_pre22
- 0.0.2_pre23
- 0.0.2_pre24
- 0.0.2_pre25
- 0.0.2_pre26
- 0.0.2_pre27
- 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
- 0.0.8.1
- 0.0.9
- 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
- 0.1.0.1
- 0.1.0.2
- 0.1.0.3
- 0.1.0.4
- 0.1.0.5
- 0.1.0.6
- 0.1.0.7
- 0.1.0.8
- 0.1.0.9
- 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
- 0.1.0.18
- 0.1.0.19
- 0.1.1
- 0.1.1.1
- 0.1.1.1
- 0.1.1.1_alpha
- 0.1.1.2
- 0.1.1.2
- 0.1.1.2_alpha
- 0.1.1.3
- 0.1.1.3
- 0.1.1.3_alpha
- 0.1.1.4
- 0.1.1.4
- 0.1.1.4_alpha
- 0.1.1.5
- 0.1.1.5
- 0.1.1.6
- 0.1.1.6
- 0.1.1.6_alpha
- 0.1.1.7
- 0.1.1.7
- 0.1.1.7_alpha
- 0.1.1.8
- 0.1.1.8
- 0.1.1.9
- 0.1.1.9
- 0.1.1.10
- 0.1.1.10
- 0.1.1.10_alpha
- 0.1.1.11
- 0.1.1.12
- 0.1.1.13
- 0.1.1.14
- 0.1.1.15
- 0.1.1.16
- 0.1.1.17
- 0.1.1.18
- 0.1.1.19
- 0.1.1.20
- 0.1.1.21
- 0.1.1.22
- 0.1.1.23
- 0.1.1.25
- 0.1.1.26
- 0.1.2.1
- 0.1.2.1
- 0.1.2.2
- 0.1.2.3
- 0.1.2.4
- 0.1.2.5
- 0.1.2.5
- 0.1.2.6
- 0.1.2.7
- 0.1.2.8
- 0.1.2.9
- 0.1.2.10
- 0.1.2.11
- 0.1.2.12
- 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
- 0.1.2.30
- 0.1.2.31
- 0.2.0.1
- 0.2.0.2
- 0.2.0.3
- 0.2.0.4
- 0.2.0.5
- 0.2.0.6
- 0.2.0.7
- 0.2.0.8
- 0.2.0.9
- 0.2.0.10
- 0.2.0.11
- 0.2.0.12
- 0.2.0.13
- 0.2.0.14
- 0.2.0.15
- 0.2.0.16
- 0.2.0.17
- 0.2.0.18
- 0.2.0.19
- 0.2.0.20
- 0.2.0.21
- 0.2.0.22
- 0.2.0.23
- 0.2.0.24
- 0.2.0.25
- 0.2.0.26
- 0.2.0.27
- 0.2.0.28
- 0.2.0.29
- 0.2.0.29
- 0.2.0.30
- 0.2.0.30
- 0.2.0.31
- 0.2.0.31
- 0.2.0.32
- 0.2.0.33
- 0.2.0.34
- 0.2.0.35
- 0.2.1.1
- 0.2.1.1.1
- 0.2.1.1.2
- 0.2.1.1.3
- 0.2.1.1.4
- 0.2.1.1.5
- 0.2.1.1.6
- 0.2.1.1.7
- 0.2.1.1.8
- 0.2.1.1.9
- 0.2.1.1.10
- 0.2.1.1.11
- 0.2.1.1.12
- 0.2.1.1.12
- 0.2.1.1.13
- 0.2.1.1.14
- 0.2.1.1.15
- 0.2.1.1.16
- 0.2.1.1.17
- 0.2.1.1.18
- 0.2.1.1.19
- 0.2.1.1.20
- 0.2.1.1.21
- 0.2.1.1.22
- 0.2.1.1.23
- 0.2.1.1.24
- 0.2.1.1.25
- 0.2.1.1.26
- 0.2.1.1.27
- 0.2.1.1.28
- 0.2.1.2
- 0.2.1.3
- 0.2.1.4
- 0.2.1.5
- 0.2.1.6
- 0.2.1.7
- 0.2.1.8
- 0.2.1.9
- 0.2.1.10
- 0.2.1.11
- 0.2.1.12
- 0.2.1.12
- 0.2.1.13
- 0.2.1.14
- 0.2.1.15
- 0.2.1.16
- 0.2.1.17
- 0.2.1.18
- 0.2.1.19
- 0.2.1.20
- 0.2.1.21
- 0.2.1.22
- 0.2.1.23
- 0.2.1.24
- 0.2.1.25
- 0.2.1.26
- 0.2.1.27
- 0.2.1.28
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.
2.82% 0.02816
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02816
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 | 2.82% (0.02816) | 86.05th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.82% (0.02816) | 84.65th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.59% (0.01591) | 80.38th | v4 (v2025.03.14) |
| Dec 17, 2024 | 4.57% (0.04565) | 92.42th | v3 (v2023.03.01) |
| Feb 2, 2024 | 6.32% (0.06324) | 92.97th | v3 (v2023.03.01) |
| Dec 13, 2023 | 5.74% (0.05742) | 92.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.28% (0.05280) | 91.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061258.html vendor-advisoryx_refsource_FEDORA
- http://secunia.com/advisories/43548 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44862 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.securityfocus.com/bid/46618 vdb-entryx_refsource_BID
- https://bugzilla.redhat.com/show_bug.cgi?id=705192 x_refsource_CONFIRMPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=705194 x_refsource_CONFIRM
- https://gitweb.torproject.org/tor.git/commit/43414eb98821d3b5c6c65181d7545ce938f82c8e x_refsource_CONFIRMPatch
- https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html mailing-listx_refsource_MLISTPatch
| Link | Providers | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061258.html | vendor-advisoryx_refsource_FEDORA | |
| http://secunia.com/advisories/43548 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://secunia.com/advisories/44862 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.securityfocus.com/bid/46618 | vdb-entryx_refsource_BID | |
| https://bugzilla.redhat.com/show_bug.cgi?id=705192 | x_refsource_CONFIRMPatch | |
| https://bugzilla.redhat.com/show_bug.cgi?id=705194 | x_refsource_CONFIRM | |
| https://gitweb.torproject.org/tor.git/commit/43414eb98821d3b5c6c65181d7545ce938f82c8e | x_refsource_CONFIRMPatch | |
| https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html | mailing-listx_refsource_MLISTPatch |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jun 14, 2011
Updated Aug 6, 2024
Reserved May 9, 2011
Link CVE-2011-1924
CISA Vulnrichment
Updated n/a