UBUNTU-CVE-2019-19448
Dashboard / Vulnerabilities / UBUNTU-CVE-2019-19448
UBUNTU-CVE-2019-19448
Published: 8 Dec 2019Last Modified: 9 Sept 2026
Upstream:
Aliases:
Summary:
Details: In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
References: https://ubuntu.com/security/CVE-2019-19448, https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448, https://ubuntu.com/security/notices/USN-4578-1, https://www.cve.org/CVERecord?id=CVE-2019-19448
Affected packages
Package
Name: linux-aws
Purl: pkg:deb/ubuntu/linux-aws?arch=source&distro=trusty%2Fesm
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -4.4.0-1078.82
Affected versions
4.4.0-1002.2
4.4.0-1003.3
4.4.0-1005.5
4.4.0-1006.6
4.4.0-1009.9
4.4.0-1010.10
4.4.0-1011.11
4.4.0-1012.12
4.4.0-1014.14
4.4.0-1016.16
4.4.0-1017.17
4.4.0-1019.19
4.4.0-1022.22
4.4.0-1023.23
4.4.0-1024.25
4.4.0-1025.26
4.4.0-1027.30
4.4.0-1028.31
4.4.0-1029.32
4.4.0-1031.34
4.4.0-1032.35
4.4.0-1034.37
4.4.0-1036.39
4.4.0-1037.40
4.4.0-1038.41
4.4.0-1039.42
4.4.0-1040.43
4.4.0-1042.45
4.4.0-1044.47
4.4.0-1045.48
4.4.0-1046.50
4.4.0-1048.52
4.4.0-1050.54
4.4.0-1052.56
4.4.0-1054.58
4.4.0-1055.59
4.4.0-1056.60
4.4.0-1058.62
4.4.0-1059.63
4.4.0-1060.64
4.4.0-1061.65
4.4.0-1062.66
4.4.0-1064.68
4.4.0-1065.69
4.4.0-1066.70
4.4.0-1067.71
4.4.0-1073.77
4.4.0-1074.78
4.4.0-1075.79
4.4.0-1076.80
4.4.0-1077.81
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
