CVE detail
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
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 11.0 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
2 source links · newest first
Researchers found an easy-to-exploit vulnerability in Snap, a universal application packaging and distribution system developed for Ubuntu but available on multiple Linux distributions. The flaw allows a low-privileged user to execute malicious code as root, the highest administrative account on Linux. The vulnerability, tracked as CVE-2021-44731, is part of a series of flaws that researchers […]
newswww.csoonline.comFeb 18, 2022, 2:30 PM- CVE-2021-44731 Linux privilege escalation bug affects Canonical’s Snap Package ManagerSecurity Affairs
Qualys experts found a new Linux privilege escalation vulnerability, tracked as CVE-2021-44731, in Canonical’s Snap Package Manager. Canonical’s Snap software packaging and deployment system are affected by multiple vulnerabilities, including a privilege escalation flaw tracked as CVE-2021-44731 (CVSS score 7.8). Snap is a software packaging and deployment system developed by Canonical for operating systems that use the Linux […]
newssecurityaffairs.comFeb 18, 2022, 9:47 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2020-24654CVSS 3.3 · Low
In KDE Ark before 20.08.1, a crafted TAR archive with symlinks can install files outside the extraction directory, as demonstrated by a write operation to a user's home directory.
- CVE-2016-1247CVSS 7.8 · High
The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04 LTS, before 1.10.0-0ubuntu0.16.04.3 on Ubuntu 16.04 LTS, and b…
- CVE-2021-44731CVSS 7.8 · High
A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by…
- CVE-2022-41973CVSS 7.8 · High
multipath-tools 0.7.7 through 0.9.x before 0.9.2 allows local users to obtain root access, as exploited in conjunction with CVE-2022-41974. Local users able to access /dev/shm can…
- CVE-2022-39253CVSS 5.5 · Medium
Git is an open source, scalable, distributed revision control system. Versions prior to 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4 are subject to exposure…
- CVE-2021-31566CVSS 7.8 · High
An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attac…