CVE-2021-25288
CRITICAL9.1EPSS 0.27%Pillow Out-of-bounds Read vulnerability
Published: 6/8/2021Modified: 4/28/2026
Description
An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_gray_i.
Affected packages (5)
- Alpine/py3-pillowfrom 0, < 8.2.0-r0
- Bitnami/pillowfrom 0, < 8.2.0
- Debian/pillowfrom 0, < 8.1.2+dfsg-0.2
- PyPI/pillow>= 2.4.0, < 8.2.0
- PyPI/pillowfrom 0, < 8.2.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
References (13)
- ADVISORYhttps://github.com/advisories/GHSA-rwv7-3v45-hg29
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-25288
- ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2021-25288
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-25288
- PATCHhttps://github.com/python-pillow/Pillow
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-138.yaml
- WEBhttps://github.com/python-pillow/Pillow/commit/3bf5eddb89afdf690eceaa52bc4d3546ba9a5f87
- WEBhttps://github.com/python-pillow/Pillow/pull/5377#issuecomment-833821470
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
- WEBhttps://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-25287-cve-2021-25288-fix-oob-read-in-jpeg2kdecode
- WEBhttps://security.gentoo.org/glsa/202107-33