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]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | s390x | eject | < 2.36.1-8+deb11u1 | eject_2.36.1-8+deb11u1_s390x.deb |
Debian | 11 | arm64 | libsmartcols1-udeb | < 2.36.1-8+deb11u1 | libsmartcols1-udeb_2.36.1-8+deb11u1_arm64.deb |
Debian | 11 | s390x | libblkid-dev | < 2.36.1-8+deb11u1 | libblkid-dev_2.36.1-8+deb11u1_s390x.deb |
Debian | 11 | armel | uuid-runtime | < 2.36.1-8+deb11u1 | uuid-runtime_2.36.1-8+deb11u1_armel.deb |
Debian | 11 | ppc64el | libsmartcols-dev | < 2.36.1-8+deb11u1 | libsmartcols-dev_2.36.1-8+deb11u1_ppc64el.deb |
Debian | 11 | amd64 | libblkid-dev | < 2.36.1-8+deb11u1 | libblkid-dev_2.36.1-8+deb11u1_amd64.deb |
Debian | 11 | amd64 | fdisk | < 2.36.1-8+deb11u1 | fdisk_2.36.1-8+deb11u1_amd64.deb |
Debian | 11 | mipsel | libmount1-dbgsym | < 2.36.1-8+deb11u1 | libmount1-dbgsym_2.36.1-8+deb11u1_mipsel.deb |
Debian | 11 | mips64el | eject-udeb | < 2.36.1-8+deb11u1 | eject-udeb_2.36.1-8+deb11u1_mips64el.deb |
Debian | 11 | s390x | libfdisk1 | < 2.36.1-8+deb11u1 | libfdisk1_2.36.1-8+deb11u1_s390x.deb |
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%