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freebsdFreeBSD38F2E3A0-B61E-11EC-9EBC-1C697AA5A594
HistoryApr 06, 2022 - 12:00 a.m.

FreeBSD -- zlib compression out-of-bounds write

2022-04-0600:00:00
vuxml.freebsd.org
70

7.5 High

CVSS3

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.003 Low

EPSS

Percentile

67.7%

Problem Description:
Certain inputs can cause zlib’s compression routine to overwrite an
internal buffer with compressed data. This issue may require the use
of uncommon or non-default compression parameters.
Impact:
The out-of-bounds write may result in memory corruption and an
application crash or kernel panic.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchfreebsd= 13.0UNKNOWN
FreeBSDanynoarchfreebsd< 13.0_11UNKNOWN

7.5 High

CVSS3

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.003 Low

EPSS

Percentile

67.7%

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