Vulnerability in Torproject Tor
CVE-2020-10593
Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (memory leak), aka TROVE-2020-004. This occurs in circpad_setup_machine_on_circ because a circuit-padding machine can be negotiated twice on the same circuit.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Torproject Tor
- openSUSE Backports Sle — versions 15.0
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
References
- trac.torproject.org/projects/tor/ticket/33619 (Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/202003-50 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00045.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00052.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10593?
- CVE-2020-10593 is a high-severity vulnerability in Torproject Tor, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2020-03-23.
- How severe is CVE-2020-10593?
- High severity. CVSS v3 base score is 7.5 out of 10.