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alpinelinuxAlpine Linux Development TeamALPINE:CVE-2021-33644
HistoryAug 10, 2022 - 8:15 p.m.

CVE-2021-33644

2022-08-1020:15:00
Alpine Linux Development Team
security.alpinelinux.org
26

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

56.1%

An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read.

OSVersionArchitecturePackageVersionFilename
Alpine3.16-communitynoarchlibtar= 1.2.20-r0UNKNOWN
Alpine3.17-communitynoarchlibtar= 1.2.20-r0UNKNOWN
Alpine3.18-communitynoarchlibtar= 1.2.20-r0UNKNOWN

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

56.1%