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freebsdFreeBSDB9837FA1-CD72-11EC-98F1-6805CA0B3D42
HistoryMay 05, 2022 - 12:00 a.m.

rsyslog8 -- heap buffer overflow on receiving TCP syslog

2022-05-0500:00:00
vuxml.freebsd.org
21

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.107 Low

EPSS

Percentile

95.0%

Rainer Gerhards reports:

Modules for TCP syslog reception have a heap buffer
overflow when octet-counted framing is used. The attacker
can corrupt heap values, leading to data integrity issues
and availability impact. Remote code execution is unlikely
to happen but not impossible…

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchrsyslog<Β 8.2204.1UNKNOWN

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.107 Low

EPSS

Percentile

95.0%