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ubuntuUbuntuUSN-4705-1
HistoryJan 26, 2021 - 12:00 a.m.

Sudo vulnerabilities

2021-01-2600:00:00
ubuntu.com
277
ubuntu
sudo
vulnerabilities
memory handling
command lines
local attacker
administrator account
cve-2021-3156
sudoedit
directory permissions
bypass
file permissions
cve-2021-23239

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

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

AI Score

7.2

Confidence

Low

EPSS

0.958

Percentile

99.5%

JSON

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • sudo - Provide limited super user privileges to specific users

Details

It was discovered that Sudo incorrectly handled memory when parsing command
lines. A local attacker could possibly use this issue to obtain unintended
access to the administrator account. (CVE-2021-3156)

It was discovered that the Sudo sudoedit utility incorrectly handled
checking directory permissions. A local attacker could possibly use this
issue to bypass file permissions and determine if a directory exists or
not. (CVE-2021-23239)

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchsudo< 1.9.1-1ubuntu1.1UNKNOWN
Ubuntu20.10noarchsudo-dbgsym< 1.9.1-1ubuntu1.1UNKNOWN
Ubuntu20.10noarchsudo-ldap< 1.9.1-1ubuntu1.1UNKNOWN
Ubuntu20.10noarchsudo-ldap-dbgsym< 1.9.1-1ubuntu1.1UNKNOWN
Ubuntu20.04noarchsudo< 1.8.31-1ubuntu1.2UNKNOWN
Ubuntu20.04noarchsudo-dbgsym< 1.8.31-1ubuntu1.2UNKNOWN
Ubuntu20.04noarchsudo-ldap< 1.8.31-1ubuntu1.2UNKNOWN
Ubuntu20.04noarchsudo-ldap-dbgsym< 1.8.31-1ubuntu1.2UNKNOWN
Ubuntu18.04noarchsudo< 1.8.21p2-3ubuntu1.4UNKNOWN
Ubuntu18.04noarchsudo-dbgsym< 1.8.21p2-3ubuntu1.4UNKNOWN
Rows per page:
1-10 of 161

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CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

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

AI Score

7.2

Confidence

Low

EPSS

0.958

Percentile

99.5%

JSON
Related for USN-4705-1
nessus55openvas32archlinux1osv6cloudfoundry1suse3gentoo1alpinelinux2debian2ubuntucve2veracode2cvelist1prion1freebsd1redhatcve2nvd1debiancve1cbl_mariner1cve1cisco1oraclelinux3virtuozzo1cisa1cert1rapid7blog2paloalto1ics3almalinux1f51githubexploit36metasploit1redhat5centos1ubuntu1avleonov1zdt2ibm1redos4photon1packetstorm4altlinux2amazon1qualysblog2exploitdb1threatpost1mageia1huawei1checkpoint_security1fedora1