Bug 1829199 (CVE-2020-10593)

Summary: CVE-2020-10593 tor: there's a memory leak allowing remote attackers to cause a DoS
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: lewk, mh, pwouters, rh-bugzilla, s
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: tor 0.3.5.10, tor 0.4.1.9, tor 0.4.2.7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-04-29 11:48:34 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1829200    
Bug Blocks:    

Description Marian Rehak 2020-04-29 08:15:14 UTC
Tor 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.

Upstream Issue:

https://trac.torproject.org/projects/tor/ticket/33619

Comment 1 Marian Rehak 2020-04-29 08:15:36 UTC
Created tor tracking bugs for this issue:

Affects: epel-all [bug 1829200]

Comment 2 Marcel Haerry 2020-04-29 11:48:34 UTC
all our releases already include fixes for that CVE