| Name | CVE-2021-23437 |
| Description | The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3768-1, ELA-1059-1 |
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 | vulnerable |
| 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 | vulnerable |
| 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.
Notes
[bullseye] - pillow <no-dsa> (Minor issue)
[stretch] - pillow <postponed> (Minor issue, can be fixed in the next DLA)
https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b
https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443