CVE-2021-29627

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 07-04-2021 05:15

Last modified: - 27-05-2022 09:06

Total changes: - 4

Description

In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Local

Attack vector

High

Availability

High

Confidentiality

High

Integrity

Low

Privileges required

Unchanged

Scope

None

User interaction

7.8

Base score

1.8

5.9

Exploitability score

Impact score

Verification logic

vendor=freebsd AND product=freebsd AND version=12.2 AND update=p1

vendor=freebsd AND product=freebsd AND version=12.2 AND update=p2

vendor=freebsd AND product=freebsd AND version=12.2 AND update=-

vendor=freebsd AND product=freebsd AND version=13.0 AND update=rc1

vendor=freebsd AND product=freebsd AND version=13.0 AND update=rc2

vendor=freebsd AND product=freebsd AND version=13.0 AND update=beta1

vendor=freebsd AND product=freebsd AND version=13.0 AND update=beta2

vendor=freebsd AND product=freebsd AND version=13.0 AND update=beta3

vendor=freebsd AND product=freebsd AND version=13.0 AND update=beta4

vendor=freebsd AND product=freebsd AND version=13.0 AND update=rc3

vendor=freebsd AND product=freebsd AND versionStartIncluding=12.0 AND versionEndExcluding=12.2

Reference

Keywords

CVE-2021-29627

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-29627

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures