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mageiaGentoo FoundationMGASA-2023-0098
HistoryMar 19, 2023 - 1:16 a.m.

Updated heimdal packages fix security vulnerability

2023-03-1901:16:28
Gentoo Foundation
advisories.mageia.org
25
heimdal
packages
security vulnerability
cve-2022-3437
memcmp
constant time
compiler bug
backported
logic inversion
gssapi
arcfour
cve-2022-45142
unix

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.01 Low

EPSS

Percentile

83.7%

JSON

The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding “!= 0” comparisons to the result of memcmp. When these patches were backported a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted. (CVE-2022-45142)

OSVersionArchitecturePackageVersionFilename
Mageia8noarchheimdal< 7.7.1-1.3heimdal-7.7.1-1.3.mga8

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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.01 Low

EPSS

Percentile

83.7%

JSON
Related for MGASA-2023-0098
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