Lucene search

K
ubuntucveUbuntu.comUB:CVE-2021-28041
HistoryMar 05, 2021 - 12:00 a.m.

CVE-2021-28041

2021-03-0500:00:00
ubuntu.com
ubuntu.com
276

4.6 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:H/Au:S/C:P/I:P/A:P

7.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

56.0%

ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a
few less-common scenarios, such as unconstrained agent-socket access on a
legacy operating system, or the forwarding of an agent to an
attacker-controlled host.

Notes

Author Note
seth-arnold openssh-ssh1 is provided for compatibility with old devices that cannot be upgraded to modern protocols. Thus we may not provide security support for this package if doing so would prevent access to equipment.
OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchopenssh< 1:8.2p1-4ubuntu0.2UNKNOWN
ubuntu20.10noarchopenssh< 1:8.3p1-1ubuntu0.1UNKNOWN

4.6 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:H/Au:S/C:P/I:P/A:P

7.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

56.0%