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CVE-2012-3517
Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of service (daemon crash) via…
Medium5.0EPSS 2.8%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of service (daemon crash) via vectors related to failed DNS requests.
Timeline
ID reserved
By redhat
- 2 months later
· 2 months later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 2.8% · top 14% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (8)
- GLSA-201301-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=849949 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [tor-announce] 20120819 Tor 0.2.2.38 is released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://gitweb.torproject.org/tor.git/commit/62637fa22405278758febb1743da9af562524d4c (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20120821 Re: CVE Request -- Tor 0.2.2.38: Three issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2012:1068 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://trac.torproject.org/projects/tor/ticket/6480 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2012-14638 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-3517)Record last updated .