CVE-2021-23437
low
CVSS v3
—
CVSS v2
—
VIR risk
2.5
Description
The package pillow from 0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-23437
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-23437.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 8.3.2-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 8.3.2-1 |
| debian | bullseye | fixed | 8.1.2+dfsg-0.3+deb11u3 |
| debian | forky | fixed | 8.3.2-1 |
| debian | sid | fixed | 8.3.2-1 |
| debian | trixie | fixed | 8.3.2-1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-23437
- https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b
- https://github.com/advisories/GHSA-98vv-pw6r-q6q4
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-317.yaml
- https://github.com/python-pillow/Pillow
- https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT
- https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html
- https://security.gentoo.org/glsa/202211-10
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443
- https://www.suse.com/security/cve/CVE-2021-23437.html
- https://security-tracker.debian.org/tracker/CVE-2021-23437
Verify integrity in audit chain (admin only). AS-IS.