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mageiaGentoo FoundationMGASA-2021-0304
HistoryJul 01, 2021 - 2:58 a.m.

Updated systemd packages fix a security vulnerability

2021-07-0102:58:41
Gentoo Foundation
advisories.mageia.org
80
systemd mishandles usernames
local attackers
cve-2020-13776

CVSS2

6.2

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:H/Au:N/C:C/I:C/A:C

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

12.6%

JSON

A flaw was found in systemd, where it mishandles numerical usernames beginning with decimal digits, or “0x” followed by hexadecimal digits. When the usernames are used by systemd, for example in service units, an unexpected user may be used instead. In some particular configurations, this flaw allows local attackers to elevate their privileges (CVE-2020-13776).

OSVersionArchitecturePackageVersionFilename
Mageia7noarchsystemd< 241-8.6systemd-241-8.6.mga7

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CVSS2

6.2

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:H/Au:N/C:C/I:C/A:C

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

12.6%

JSON
Related for MGASA-2021-0304
openvas8nessus20altlinux1fedora1redhatcve1cbl_mariner1osv2rocky1prion1almalinux1cve1redhat12veracode1oraclelinux1ubuntucve1f51broadcom1photon6nvd1cvelist1debiancve1amazon1kitploit1rosalinux1ibm2ics1