CVE-2021-25289

NameCVE-2021-25289
DescriptionAn issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pillow (PTS)stretch4.0.0-4+deb9u1fixed
stretch (security)4.0.0-4+deb9u3fixed
buster5.4.1-2+deb10u2fixed
buster (security)5.4.1-2+deb10u1fixed
bullseye8.1.2+dfsg-0.3fixed
bookworm, sid8.3.2-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pillowsourcestretch(not affected)
pillowsourcebuster(not affected)
pillowsource(unstable)8.1.1-1

Notes

[buster] - pillow <not-affected> (Vulnerable code not present)
[stretch] - pillow <not-affected> (Vulnerable code not present)
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html
https://github.com/python-pillow/Pillow/commit/cbfdde7b1f2295059a20a539ee9960f0bec7b299

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