CVE-2021-34552
CRITICAL
9.8
CVSS Score
Published: July 13, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:56 AM UTC
3 products affected across 3 vendorsDebian LinuxFedoraPillow
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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- 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
- https://security.gentoo.org/glsa/202211-10
References (6)
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/07/msg00018.htmlRelease NotesVendor Advisory
Source: [email protected]
https://pillow.readthedocs.io/en/stable/releasenotes/8.3.0.html#buffer-overflowRelease NotesVendor Advisory
Source: [email protected]
https://pillow.readthedocs.io/en/stable/releasenotes/index.htmlVendor AdvisoryThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202211-10CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120
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