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ubuntucveUbuntu.comUB:CVE-2022-3821
HistoryNov 08, 2022 - 12:00 a.m.

CVE-2022-3821

2022-11-0800:00:00
ubuntu.com
ubuntu.com
26
systemd
off-by-one error
time-util.c
buffer overrun
denial of service

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

32.7%

JSON

An off-by-one Error issue was discovered in Systemd in format_timespan()
function of time-util.c. An attacker could supply specific values for time
and accuracy that leads to buffer overrun in format_timespan(), leading to
a Denial of Service.

Bugs

Notes

Author Note
0xnishit For trusty, time-util.c resides in src/shared/time-util.c
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchsystemd< 237-3ubuntu10.57UNKNOWN
ubuntu20.04noarchsystemd< 245.4-4ubuntu3.20UNKNOWN
ubuntu22.04noarchsystemd< 249.11-0ubuntu3.7UNKNOWN
ubuntu14.04noarchsystemd< 204-5ubuntu20.31+esm2UNKNOWN
ubuntu16.04noarchsystemd< 229-4ubuntu21.31+esm3UNKNOWN

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5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

32.7%

JSON
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