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mageiaGentoo FoundationMGASA-2021-0293
HistoryJun 29, 2021 - 12:16 a.m.

Updated tor package fixes security vulnerabilities

2021-06-2900:16:35
Gentoo Foundation
advisories.mageia.org
9

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.005 Low

EPSS

Percentile

76.8%

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).

OSVersionArchitecturePackageVersionFilename
Mageia7noarchtor< 0.3.5.15-1.1tor-0.3.5.15-1.1.mga7
Mageia8noarchtor< 0.3.5.15-1.1tor-0.3.5.15-1.1.mga8

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.005 Low

EPSS

Percentile

76.8%