Id:
CVE-2019-15792
Comment
:
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() calls fdget(oldfd), then without further checks passes the resulting file* into shiftfs_real_fdget(), which casts file->private_data, a void* that points to a filesystem-dependent type, to a "struct shiftfs_file_info *". As the private_data is not required to be a pointer, an attacker can use this to cause a denial of service or possibly execute arbitrary code.
CVSSv2 Score:
4.6
Access vector:
|
LOCAL
|
Access complexity:
|
LOW
|
Authentication:
|
NONE
|
Confidentiality impact:
|
PARTIAL
|
Integrity impact:
|
PARTIAL
|
Availability impact:
|
PARTIAL
|
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
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
|
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References: