Test ID:	1.3.6.1.4.1.25623.1.1.10.2021.0293
Category:	Mageia Linux Local Security Checks
Title:	Mageia: Security Advisory (MGASA-2021-0293)
Summary:	The remote host is missing an update for the 'tor' package(s) announced via the MGASA-2021-0293 advisory.
Description:	Summary: The remote host is missing an update for the 'tor' package(s) announced via the MGASA-2021-0293 advisory. Vulnerability Insight: Don't allow relays to spoof RELAY_END or RELAY_RESOLVED cell on half-closed streams. Previously, clients failed to validate which hop sent these cells: this would allow a relay on a circuit to end a stream that wasn't actually built with it (CVE-2021-34548). hashtable-based CPU denial-of-service attack against relays (CVE-2021-34549). out-of-bounds memory access in v3 onion service descriptor parsing (CVE-2021-34550). See also upstream release notes for included other bugfixes. This package also fixes an error in tor package's un-install script (mga#29158). Affected Software/OS: 'tor' package(s) on Mageia 7, Mageia 8. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-34548 https://security.gentoo.org/glsa/202107-25 http://packetstormsecurity.com/files/163510/Tor-Half-Closed-Connection-Stream-Confusion.html https://gitlab.torproject.org/tpo/core/tor/-/issues/40389 Common Vulnerability Exposure (CVE) ID: CVE-2021-34549 https://gitlab.torproject.org/tpo/core/tor/-/issues/40391 Common Vulnerability Exposure (CVE) ID: CVE-2021-34550 https://gitlab.torproject.org/tpo/core/tor/-/issues/40392
Copyright	Copyright (C) 2022 Greenbone AG

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