Headline
Gentoo Linux Security Advisory 202305-11
Gentoo Linux Security Advisory 202305-11 - Multiple vulnerabilities have been found in Tor, the worst of which could result in denial of service. Versions less than 0.4.7.13 are affected.
Gentoo Linux Security Advisory GLSA 202305-11
https://security.gentoo.org/
Severity: Normal
Title: Tor: Multiple Vulnerabilities
Date: May 03, 2023
Bugs: #808681, #852821, #890618
ID: 202305-11
Synopsis
Multiple vulnerabilities have been found in Tor, the worst of which
could result in denial of service.
Background
Tor is an implementation of second generation Onion Routing, a
connection-oriented anonymizing communication service.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-vpn/tor < 0.4.7.13 >= 0.4.7.13
Description
Multiple vulnerabilities have been discovered in Tor. Please review the
CVE identifiers referenced below for details.
Impact
Please review the referenced CVE identifiers for details.
Workaround
There is no known workaround at this time.
Resolution
All Tor users should upgrade to the latest version:
emerge --sync
emerge --ask --oneshot --verbose “>=net-vpn/tor-0.4.7.13”
References
[ 1 ] CVE-2021-38385
https://nvd.nist.gov/vuln/detail/CVE-2021-38385
[ 2 ] CVE-2022-33903
https://nvd.nist.gov/vuln/detail/CVE-2022-33903
[ 3 ] CVE-2023-23589
https://nvd.nist.gov/vuln/detail/CVE-2023-23589
[ 4 ] TROVE-2021-007
[ 5 ] TROVE-2022-001
[ 6 ] TROVE-2022-002
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202305-11
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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
Copyright 2023 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5
Related news
Debian Linux Security Advisory 5320-1 - A logic error was discovered in the implementation of the "SafeSocks" option of Tor, a connection-based low-latency anonymous communication system, which did result in allowing unsafe SOCKS4 traffic to pass.
The SafeSocks option in Tor before 0.4.7.13 has a logic error in which the unsafe SOCKS4 protocol can be used but not the safe SOCKS4a protocol, aka TROVE-2022-002.
Tor 0.4.7.x before 0.4.7.8 allows a denial of service via the wedging of RTT estimation.