Path traversal in Pillow - CVE-2022-22815
Published: January 25, 2022
Vulnerability identifier: #VU60001
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-22815
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Alex Clark and Contributors
Affected software:
Pillow
Pillow
Detailed vulnerability description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in path_getbbox() function in path.c. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
How to mitigate CVE-2022-22815
Install update from vendor's website.
Sources
- https://github.com/python-pillow/Pillow/blob/c5d9223a8b5e9295d15b5a9b1ef1dae44c8499f3/src/path.c#L331
- https://pillow.readthedocs.io/en/stable/releasenotes/9.0.0.html#fixed-imagepath-path-array-handling
- https://lists.debian.org/debian-lts-announce/2022/01/msg00018.html
- https://www.debian.org/security/2022/dsa-5053