CVE-2021-28089

2021-03-1905:15:12

Debian Security Bug Tracker

security-tracker.debian.org

tor

directory protocol

cpu exhaustion

trove-2021-001

unix

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

CVSS3

7.5

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

EPSS

0.002

Percentile

61.1%

JSON

Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001.

OSVersionArchitecturePackageVersionFilename
Debian12alltor< 0.4.5.7-1tor_0.4.5.7-1_all.deb
Debian11alltor< 0.4.5.7-1tor_0.4.5.7-1_all.deb
Debian999alltor< 0.4.5.7-1tor_0.4.5.7-1_all.deb
Debian13alltor< 0.4.5.7-1tor_0.4.5.7-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	tor	< 0.4.5.7-1	tor_0.4.5.7-1_all.deb
Debian	11	all	tor	< 0.4.5.7-1	tor_0.4.5.7-1_all.deb
Debian	999	all	tor	< 0.4.5.7-1	tor_0.4.5.7-1_all.deb
Debian	13	all	tor	< 0.4.5.7-1	tor_0.4.5.7-1_all.deb