CVE-2021-44730

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-44730
snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.1 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.9 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
http://www.openwall.com/lists/oss-security/2022/02/18/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/02/23/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/
https://ubuntu.com/security/notices/USN-5292-1 Patch Vendor Advisory
https://www.debian.org/security/2022/dsa-5080 Issue Tracking Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/02/18/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/02/23/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/
https://ubuntu.com/security/notices/USN-5292-1 Patch Vendor Advisory
https://www.debian.org/security/2022/dsa-5080 Issue Tracking Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
History

21 Nov 2024, 06:31

Type Values Removed Values Added
CVSS v2 : 6.9
v3 : 8.8 		v2 : 6.9
v3 : 7.8
References () http://www.openwall.com/lists/oss-security/2022/02/18/2 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2022/02/18/2 - Mailing List, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2022/02/23/1 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2022/02/23/1 - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/ -
References () https://ubuntu.com/security/notices/USN-5292-1 - Patch, Vendor Advisory () https://ubuntu.com/security/notices/USN-5292-1 - Patch, Vendor Advisory
References () https://www.debian.org/security/2022/dsa-5080 - Issue Tracking, Third Party Advisory () https://www.debian.org/security/2022/dsa-5080 - Issue Tracking, Third Party Advisory

28 Feb 2022, 17:00

Type Values Removed Values Added
References (MISC) https://ubuntu.com/security/notices/USN-5292-1 - (MISC) https://ubuntu.com/security/notices/USN-5292-1 - Patch, Vendor Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/ - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/ - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2022/02/18/2 - (MLIST) http://www.openwall.com/lists/oss-security/2022/02/18/2 - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2022/02/23/1 - (MLIST) http://www.openwall.com/lists/oss-security/2022/02/23/1 - Mailing List, Third Party Advisory
References (DEBIAN) https://www.debian.org/security/2022/dsa-5080 - (DEBIAN) https://www.debian.org/security/2022/dsa-5080 - Issue Tracking, Third Party Advisory
CWE CWE-59
CVSS v2 : unknown
v3 : unknown 		v2 : 6.9
v3 : 8.8
CPE cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

24 Feb 2022, 15:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2022/02/23/1 -

21 Feb 2022, 11:15

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2022/dsa-5080 -

20 Feb 2022, 03:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/ -
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/ -

18 Feb 2022, 10:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2022/02/18/2 -

17 Feb 2022, 23:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-02-17 23:15

Updated : 2024-11-21 06:31

NVD link : CVE-2021-44730

Mitre link : CVE-2021-44730

CVE.ORG link : CVE-2021-44730

JSON object : View

Products Affected

canonical

  • snapd
  • ubuntu_linux

debian

  • debian_linux

fedoraproject

  • fedora
CWE
CWE-59

Improper Link Resolution Before File Access ('Link Following')