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CVE-2019-15792
Good to know:
Date: May 1, 2020
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.
Language: C
Severity Score
Related Resources (6)
Severity Score
Weakness Type (CWE)
Access of Resource Using Incompatible Type ('Type Confusion')
CWE-843Top Fix
CVSS v3
Base Score: |
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Attack Vector (AV): | |
Attack Complexity (AC): | |
Privileges Required (PR): | |
User Interaction (UI): | |
Scope (S): | |
Confidentiality (C): | NONE |
Integrity (I): | NONE |
Availability (A): | PARTIAL |
CVSS v2
Base Score: |
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Access Vector (AV): | |
Access Complexity (AC): | |
Authentication (AU): | |
Confidentiality (C): | LOW |
Integrity (I): | NONE |
Availability (A): | NONE |
Additional information: |