CVE-2017-8820
mediumpriority · track · 31EPSS 0.017 · 77 %ileEUUSEPSS · scored 2026-10-27
In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, remote attackers can cause a denial of service (NULL pointer dereference and application crash) against directory authorities via a malformed descriptor, aka TROVE-2017-010.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
- n/a Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9≤ Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9enisa_euvdEU
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516cnnvd
- https://bugs.torproject.org/24245cnnvd
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516enisa_euvd
- https://bugs.torproject.org/24245enisa_euvd
- https://www.debian.org/security/2017/dsa-4054enisa_euvd
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516Vendor Advisorynvd
- https://bugs.torproject.org/24245Vendor Advisorynvd
- https://www.debian.org/security/2017/dsa-4054Third Party Advisorynvd
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