Vulnerability · Published Jun 2, 2021 · Assigned by mitre
CVE-2021-28678
Medium 5.5
In plain English
A medium-severity security flaw in the python3-pillow package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.7%top 45.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | python3-pillow | 5.1.1-16.el8 | ALSA-2021:4149 |
| Alpine:v3.20 | py3-pillow | 8.2.0-r0 | ALPINE-CVE-2021-28678 |
| Alpine:v3.21 | py3-pillow | 8.2.0-r0 | ALPINE-CVE-2021-28678 |
| Alpine:v3.22 | py3-pillow | 8.2.0-r0 | ALPINE-CVE-2021-28678 |
| Alpine:v3.23 | py3-pillow | 8.2.0-r0 | ALPINE-CVE-2021-28678 |
| Alpine:v3.24 | py3-pillow | 8.2.0-r0 | ALPINE-CVE-2021-28678 |
| Debian:12 | pillow | 8.1.2+dfsg-0.2 | DEBIAN-CVE-2021-28678 |
| Debian:13 | pillow | 8.1.2+dfsg-0.2 | DEBIAN-CVE-2021-28678 |
| Debian:14 | pillow | 8.1.2+dfsg-0.2 | DEBIAN-CVE-2021-28678 |
| PyPI | pillow | 8.2.0 | GHSA-hjfx-8p6c-g7gx |
| PyPI | pillow | 8.2.0 | PYSEC-2021-94 |
| Rocky Linux:8 | python-pillow | 0:5.1.1-16.el8 | RLSA-2021:4149 |
Affected products (as reported)
References
- https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28678-fix-blp-dos x_refsource_MISC
- https://github.com/python-pillow/Pillow/pull/5377 x_refsource_MISC
- FEDORA-2021-77756994ba vendor-advisory, x_refsource_FEDORA
- GLSA-202107-33 vendor-advisory, x_refsource_GENTOO