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CVE Record

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...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Older Tor versions could crash when handling certain failed DNS requests. The documented business impact is availability: interruption of Tor daemon service. The source bundle does not show data theft, privilege escalation, or confirmed active exploitation. Exposure is most likely on systems running Tor versions before 0.2.2.38, including distro packages not yet updated at the time. Modern supported Tor packages should not be affected, but legacy appliances, pinned repositories, or abandoned hosts need confirmation. Prioritize remediation where Tor availability supports business operations, privacy workflows, or security tooling. For current, vendor-supported environments this is usually a legacy cleanup item, not an emergency, because active exploitation is not documented in the provided sources. Mitigation focus: Upgrade Tor to 0.2.2.38 or a vendor-supported fixed package.; Apply relevant distro security updates from Gentoo, openSUSE, Fedora, or your platform vendor.; Replace unsupported legacy Tor installations instead of backporting without vendor guidance..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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