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CVE-2020-10593

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Date: March 23, 2020

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.

Language: C

Severity Score

Related Resources (9)

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00052.html
https://nvd.nist.gov/vuln/detail/CVE-2020-10593
https://security.gentoo.org/glsa/202003-50
https://security-tracker.debian.org/tracker/CVE-2020-10593
https://trac.torproject.org/projects/tor/ticket/33619
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-10593
https://security.alpinelinux.org/vuln/CVE-2020-10593
https://www.mend.io/vulnerability-database/CVE-2020-10593

Severity Score

Weakness Type (CWE)

Missing Release of Memory after Effective Lifetime

CWE-401

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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