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ubuntucveUbuntu.comUB:CVE-2021-35942
HistoryJul 22, 2021 - 12:00 a.m.

CVE-2021-35942

2021-07-2200:00:00
ubuntu.com
ubuntu.com
37

6.4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

0.011 Low

EPSS

Percentile

84.8%

The wordexp function in the GNU C Library (aka glibc) through 2.33 may
crash or read arbitrary memory in parse_param (in posix/wordexp.c) when
called with an untrusted, crafted pattern, potentially resulting in a
denial of service or disclosure of information. This occurs because atoi
was used but strtoul should have been used to ensure correct calculations.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarcheglibc< anyUNKNOWN
ubuntu18.04noarchglibc< 2.27-3ubuntu1.5UNKNOWN
ubuntu20.04noarchglibc< 2.31-0ubuntu9.7UNKNOWN
ubuntu16.04noarchglibc< 2.23-0ubuntu11.3+esm2UNKNOWN

6.4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

0.011 Low

EPSS

Percentile

84.8%