CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2021-34552
Critical (9.8). EPSS 3.2% chance of exploitation in the next 30 days. Fixed in pillow 8.3.0.
Pillow through 8.2.0 and PIL (aka Python Imaging Library) through 1.1.7 allow an attacker to pass controlled parameters directly into a convert function to trigger a buffer overflow in Convert.c.
Severity
- EPSS
- 3.2% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
- CWE
- CWE-120
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- fedoraproject:fedora
- python:pillow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7534-mm45-c74v | PyPI | pillow | <8.3.0 | 8.3.0 |
| PYSEC-2021-331 | PyPI | pillow | <8.3.0 | 8.3.0 |
References
- https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V6LCG525ARIX6LX5QRYNAWVDD2MD2SV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUGBBT63VL7G4JNOEIPDJIOC34ZFBKNJ/
- https://pillow.readthedocs.io/en/stable/releasenotes/8.3.0.html#buffer-overflow
- https://pillow.readthedocs.io/en/stable/releasenotes/index.html