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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
33
rsyslog8
heap buffer overflow
tcp syslog
data integrity
availability impact
remote code execution

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

8.1

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

EPSS

0.191

Percentile

96.3%

JSON

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< 8.2204.1UNKNOWN

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CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

8.1

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

EPSS

0.191

Percentile

96.3%

JSON
Related for B9837FA1-CD72-11EC-98F1-6805CA0B3D42
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