The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the relay_send_end_cell_from_edge_ function via a malformed BEGIN cell
Published Jun 9, 2017
7.5
HIGHCVSS 3.0
EPSS 2.61%
Description
The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the relay_send_end_cell_from_edge_ function via a malformed BEGIN cell.
Affected products
- Vendor n/a Product Tor before 0.3.0.8 Defaultn/a
- Version Tor before 0.3.0.8StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Tor before 0.3.0.8 | n/a |
|
- < 0.3.0.8
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.61% (0.02613) | 84.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.61% (0.02613) | 83.36th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.40% (0.01397) | 78.64th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.70% (0.02704) | 76.44th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.36% (0.00365) | 72.69th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.36% (0.00365) | 71.64th | v3 (v2023.03.01) |
| May 8, 2023 | 0.36% (0.00365) | 68.21th | v3 (v2023.03.01) |
| Mar 25, 2023 | 0.30% (0.00303) | 64.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.39% (0.00388) | 69.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.29% (0.01294) | 30.79th | v1 |
| Jan 6, 2022 | 1.29% (0.01294) | 30.15th | v1 |
| Sep 1, 2021 | 1.29% (0.01294) | 69.02th | v1 |
| Apr 14, 2021 | 1.29% (0.01294) | 0.00th | v1 |
References (4)
- http://www.securityfocus.com/bid/99017 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/torproject/tor/commit/79b59a2dfcb68897ee89d98587d09e55f07e68d7 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.html x_refsource_CONFIRMMailing ListThird Party Advisory
- https://trac.torproject.org/projects/tor/ticket/22493 x_refsource_CONFIRMIssue Tracking
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/99017 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/torproject/tor/commit/79b59a2dfcb68897ee89d98587d09e55f07e68d7 | x_refsource_CONFIRMIssue TrackingPatchVendor Advisory | |
| https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.html | x_refsource_CONFIRMMailing ListThird Party Advisory | |
| https://trac.torproject.org/projects/tor/ticket/22493 | x_refsource_CONFIRMIssue Tracking |
Change history (0)
No recorded changes yet.