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

References

Affected packages

Git / github.com/snapcore/snapd

Affected ranges

Type: GIT
Repo: https://github.com/snapcore/snapd
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Last affected

f6ff602cae4755eb38d1bbb20fa15752cb3b763a

Affected versions

0.*

0.1-0ubuntu1

0.2

0.2.10

0.2.11

0.2.12

0.2.13

0.2.3

0.2.4

0.2.8

0.2.9

1.*

1.0-0ubuntu1

1.0.1

1.0.1-0ubuntu1

1.0.10

1.0.11

1.0.12

1.0.13

1.0.14

1.0.15

1.0.16

1.0.17

1.0.2

1.0.20

1.0.21

1.0.22

1.0.23

1.0.24

1.0.25

1.0.25.1

1.0.26

1.0.27

1.0.28

1.0.29

1.0.3

1.0.30

1.0.31

1.0.32

1.0.33

1.0.34

1.0.35

1.0.36

1.0.37

1.0.38

1.0.39

1.0.4

1.0.40

1.0.41

1.0.42

1.0.42.1

1.0.43

1.0.44

1.0.5

1.0.6

1.0.8

1.0.9

1.1-0ubuntu1

1.1.1-0ubuntu1

1.1.2-0ubuntu1

1.2-0ubuntu1

1.3ubuntu1

1.4ubuntu1

1.5ubuntu1

1.6ubuntu1

1.7.2+20160113ubuntu1

1.7.2+20160204ubuntu1

1.7.2+20160223ubuntu1

1.7.2ubuntu1

1.7.3+20160225ubuntu1

1.7.3+20160303ubuntu1

1.7.3+20160303ubuntu2

1.7.3+20160303ubuntu3

1.7.3+20160303ubuntu4

1.7.3+20160308ubuntu1

1.7.3+20160310ubuntu1

1.7ubuntu1

1.9

1.9.1

1.9.2

1.9.3

1.9.4

2.*

2.0

2.0.10

2.0.3

2.0.4

2.0.5

2.0.6

2.0.7

2.0.8

2.0.8.1

2.0.9

2.11

2.12

2.13

2.14

2.14.1

2.14.2.16.04

2.15

2.15.1

2.15.2

2.17

2.17.1

2.18

2.18.1

2.19

2.20

2.20.1

2.21

2.22

2.22.1

2.22.2

2.22.3

2.22.4

2.22.5

2.22.6

2.22.7

2.23

2.23.1

2.24

2.25

2.26

2.26.1

2.26.10

2.26.13

2.26.14

2.26.2

2.26.3

2.26.4

2.26.5

2.26.6

2.26.8

2.26.9

2.27

2.27.1

2.27.2

2.27.3

2.27.4

2.27.5

2.27.6

2.28

2.28.1

2.28.2

2.28.3

2.28.4

2.28.5

2.29

2.29.1

2.29.2

2.29.3

2.29.3.1

2.29.4

2.29.4.1

2.30

2.31

2.31.1

2.31.2

2.32

2.32.1

2.32.2

2.32.3

2.32.3.2

2.32.4

2.32.5

2.32.6

2.32.7

2.32.8

2.32.9

2.33

2.33.1

2.34

2.34.1

2.34.2

2.34.3

2.35

2.35.1

2.35.2

2.35.4

2.35.5

2.36

2.36.1

2.36.2

2.36.3

2.37

2.37.1

2.37.2

2.37.3

2.37.4

2.38

2.38.1

2.39

2.39.1

2.39.2

2.39.3

2.40

2.41

2.41.pre1

2.42

2.42.1

2.42.2

2.42.3

2.42.4

2.42.5

2.43

2.43.1

2.43.2

2.43.3

2.44

2.44.1

2.44.2

2.44.3

2.44.4

2.44.5

2.45

2.45.1

2.45.2

2.45.3

2.45.3.1

2.46

2.46.1

2.47

2.47.1

2.48

2.48.1

2.48.2

2.49

2.49.1

2.49.2

2.50

2.50.1

2.51

2.51.1

2.51.2

2.51.3

2.51.4

2.51.5

2.51.6

2.51.7

2.52

2.52.1

2.53

2.53.1

2.53.2

2.53.3

2.53.4

2.54

2.54.1

2.54.2

Other

ppa

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