CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
34.4%
USN-5292-1 fixed a vulnerability in snapd. Unfortunately that update introduced
a regression that could break the fish shell. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
James Troup discovered that snap did not properly manage the permissions for
the snap directories. A local attacker could possibly use this issue to expose
sensitive information. (CVE-2021-3155)
Ian Johnson discovered that snapd did not properly validate content interfaces
and layout paths. A local attacker could possibly use this issue to inject
arbitrary AppArmor policy rules, resulting in a bypass of intended access
restrictions. (CVE-2021-4120)
The Qualys Research Team discovered that snapd did not properly validate the
location of the snap-confine binary. A local attacker could possibly use this
issue to execute other arbitrary binaries and escalate privileges.
(CVE-2021-44730)
The Qualys Research Team discovered that a race condition existed in the snapd
snap-confine binary when preparing a private mount namespace for a snap. A
local attacker could possibly use this issue to escalate privileges and
execute arbitrary code. (CVE-2021-44731)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 21.10 | noarch | snap-confine | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | golang-github-snapcore-snapd-dev | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | golang-github-ubuntu-core-snappy-dev | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | snapd | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | snapd-dbgsym | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | snapd-xdg-open | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | ubuntu-core-launcher | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | ubuntu-core-snapd-units | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | ubuntu-snappy | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
Ubuntu | 21.10 | noarch | ubuntu-snappy-cli | <Β 2.54.3+21.10.1ubuntu0.2 | UNKNOWN |
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
34.4%