The networkstatus_parse_vote_from_string function in routerparse.c in Tor before 0.2.2.38 does not properly handle an invalid flavor name, which allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted (1) vote document or (2) consensus document
Published Aug 26, 2012
5.0
MEDIUMCVSS 2.0
EPSS 2.77%
Description
The networkstatus_parse_vote_from_string function in routerparse.c in Tor before 0.2.2.38 does not properly handle an invalid flavor name, which allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted (1) vote document or (2) consensus document.
Affected products
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.
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.77% (0.02775) | 85.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.77% (0.02775) | 84.43th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.46% (0.01461) | 79.52th | 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 | 1.41% (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) |
References (8)
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html vendor-advisoryx_refsource_SUSE
- http://openwall.com/lists/oss-security/2012/08/21/6 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/50583 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201301-03.xml vendor-advisoryx_refsource_GENTOO
- https://gitweb.torproject.org/tor.git/commit/55f635745afacefffdaafc72cc176ca7ab817546 x_refsource_CONFIRM
- https://gitweb.torproject.org/tor.git/commit/57e35ad3d91724882c345ac709666a551a977f0f x_refsource_CONFIRM
- https://lists.torproject.org/pipermail/tor-announce/2012-August/000086.html mailing-listx_refsource_MLIST
- https://trac.torproject.org/projects/tor/ticket/6530 x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html | vendor-advisoryx_refsource_SUSE | |
| http://openwall.com/lists/oss-security/2012/08/21/6 | mailing-listx_refsource_MLIST | |
| http://secunia.com/advisories/50583 | third-party-advisoryx_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201301-03.xml | vendor-advisoryx_refsource_GENTOO | |
| https://gitweb.torproject.org/tor.git/commit/55f635745afacefffdaafc72cc176ca7ab817546 | x_refsource_CONFIRM | |
| https://gitweb.torproject.org/tor.git/commit/57e35ad3d91724882c345ac709666a551a977f0f | x_refsource_CONFIRM | |
| https://lists.torproject.org/pipermail/tor-announce/2012-August/000086.html | mailing-listx_refsource_MLIST | |
| https://trac.torproject.org/projects/tor/ticket/6530 | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.