| Name | CVE-2021-28678 |
| Description | An issue was discovered in Pillow before 8.2.0. For BLP data, BlpImagePlugin did not properly check that reads (after jumping to file offsets) returned data. This could lead to a DoS where the decoder could be run a large number of times on empty data. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 989062 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| pillow (PTS) | jessie, jessie (lts) | 2.6.1-2+deb8u10 | fixed |
| stretch (security) | 4.0.0-4+deb9u4 | fixed |
| stretch (lts), stretch | 4.0.0-4+deb9u6 | fixed |
| buster (security), buster, buster (lts) | 5.4.1-2+deb10u6 | fixed |
| bullseye (security), bullseye | 8.1.2+dfsg-0.3+deb11u2 | fixed |
| bookworm (security), bookworm | 9.4.0-1.1+deb12u1 | fixed |
| sid, trixie | 10.4.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| pillow | source | experimental | 8.2.0-1 | | | |
| pillow | source | jessie | (not affected) | | | |
| pillow | source | stretch | (not affected) | | | |
| pillow | source | buster | 5.4.1-2+deb10u3 | | | |
| pillow | source | (unstable) | 8.1.2+dfsg-0.2 | | | 989062 |
Notes
[stretch] - pillow <not-affected> (Vulnerable code introduced later)
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28678-fix-blp-dos
https://github.com/python-pillow/Pillow/commit/496245aa4365d0827390bd0b6fbd11287453b3a1
[jessie] - pillow <not-affected> (Vulnerable code introduced later)