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Gentoo: GLSA-202003-50 Low Severity Denial of Service Risk in Tor

gentoo
Calendar Grey March 25, 2020
Dist Gentoo Esm H88
Alert regarding several security flaws in Tor impacting Gentoo systems; caution against possible remote Denial of Service threat issued.
Multiple vulnerabilities were found in Tor, the worst of which could allow remote attackers to cause a Denial of Service condition.

Summary

Multiple vulnerabilities have been discovered in Tor, and tor. Please review the CVE identifiers referenced below for details.

Topics%20covered

Topics Covered

security advisory denial of service gentoo low severity multiple vulnerabilities tor

Resolution

All Tor 0.4.1.x users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.1.9"
All Tor 0.4.2.x users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.2.7"

References

[ 1 ] CVE-2020-10592 https://nvd.nist.gov/vuln/detail/CVE-2020-10592 [ 2 ] CVE-2020-10593 https://nvd.nist.gov/vuln/detail/CVE-2020-10593

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202003-50
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity
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Severity: Low
Title: Tor: Multiple vulnerabilities
Date: March 25, 2020
Bugs: #713238
ID: 202003-50

Topics%20covered

Topics Covered

security advisory denial of service gentoo low severity multiple vulnerabilities tor

Synopsis

Multiple vulnerabilities were found in Tor, the worst of which could allow remote attackers to cause a Denial of Service condition.

Background

Tor is an implementation of second generation Onion Routing, a connection-oriented anonymizing communication service.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-vpn/tor < 0.4.2.7 *>= 0.4.1.9 *>= 0.4.2.7

Impact

===== A remote attacker could possibly cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

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