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HistoryJan 24, 2022 - 11:31 a.m.

[SECURITY] [DSA 5055-1] util-linux security update

2022-01-2411:31:30
lists.debian.org
47

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

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%


Debian Security Advisory DSA-5055-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
January 24, 2022 https://www.debian.org/security/faq


Package : util-linux
CVE ID : CVE-2021-3995 CVE-2021-3996

The Qualys Research Labs discovered two vulnerabilities in util-linux's
libmount. These flaws allow an unprivileged user to unmount other users'
filesystems that are either world-writable themselves or mounted in a
world-writable directory (CVE-2021-3996), or to unmount FUSE filesystems
that belong to certain other users (CVE-2021-3995).

For the stable distribution (bullseye), these problems have been fixed in
version 2.36.1-8+deb11u1.

We recommend that you upgrade your util-linux packages.

For the detailed security status of util-linux please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/util-linux

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

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

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%