Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data
Published Jan 4, 2017
7.5
HIGHCVSS 3.0
EPSS 1.95%
Description
Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data.
Affected products
No data.
- ≤ 0.2.8.8
- 0.2.9.0
- 0.2.9.1
- 0.2.9.2
- 0.2.9.3
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.95% (0.01947) | 79.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.93% (0.01930) | 77.30th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.68% (0.02682) | 84.53th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.13% (0.05127) | 82.70th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.68% (0.02682) | 84.84th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.82% (0.02819) | 90.38th | v3 (v2023.03.01) |
| Apr 6, 2024 | 4.93% (0.04928) | 92.64th | v3 (v2023.03.01) |
| Jan 17, 2024 | 4.39% (0.04386) | 91.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.76% (0.03759) | 90.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (7)
- http://openwall.com/lists/oss-security/2016/10/19/11 mailing-listx_refsource_MLISTThird Party Advisory
- http://www.debian.org/security/2016/dsa-3694 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/95116 vdb-entryx_refsource_BID
- https://blog.torproject.org/blog/tor-0289-released-important-fixes x_refsource_CONFIRMRelease NotesVendor Advisory
- https://github.com/torproject/tor/commit/3cea86eb2fbb65949673eb4ba8ebb695c87a57ce x_refsource_CONFIRMPatchVendor Advisory
- https://security.gentoo.org/glsa/201612-45 vendor-advisoryx_refsource_GENTOO
- https://trac.torproject.org/projects/tor/ticket/20384 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://openwall.com/lists/oss-security/2016/10/19/11 | mailing-listx_refsource_MLISTThird Party Advisory | |
| http://www.debian.org/security/2016/dsa-3694 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/95116 | vdb-entryx_refsource_BID | |
| https://blog.torproject.org/blog/tor-0289-released-important-fixes | x_refsource_CONFIRMRelease NotesVendor Advisory | |
| https://github.com/torproject/tor/commit/3cea86eb2fbb65949673eb4ba8ebb695c87a57ce | x_refsource_CONFIRMPatchVendor Advisory | |
| https://security.gentoo.org/glsa/201612-45 | vendor-advisoryx_refsource_GENTOO | |
| https://trac.torproject.org/projects/tor/ticket/20384 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.