Lucene search

K
ubuntucveUbuntu.comUB:CVE-2021-3999
HistoryFeb 01, 2022 - 12:00 a.m.

CVE-2021-3999

2022-02-0100:00:00
ubuntu.com
ubuntu.com
123

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

A flaw was found in glibc. An off-by-one buffer overflow and underflow in
getcwd() may lead to memory corruption when the size of the buffer is
exactly 1. A local attacker who can control the input buffer and size
passed to getcwd() in a setuid program could use this flaw to potentially
execute arbitrary code and escalate their privileges on the system.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarcheglibc< anyUNKNOWN
ubuntu18.04noarchglibc< 2.27-3ubuntu1.5UNKNOWN
ubuntu20.04noarchglibc< 2.31-0ubuntu9.7UNKNOWN
ubuntu21.10noarchglibc< 2.34-0ubuntu3.2UNKNOWN

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

Related for UB:CVE-2021-3999