CVE-2023-44271 — An issue was discovered in Pillow before 10
An issue was discovered in Pillow before 10.0.0. It is a Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw in
Published
2023-11-03T00:00:00.000Z
Last modified
2024-08-02T19:59:51.982Z
01What is this vulnerability?
An issue was discovered in Pillow before 10.0.0. It is a Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw instance operates on a long text argument.
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2023-11-03T00:00:00.000Z
- Last modified: 2024-08-02T19:59:51.982Z
09References
- github.com — https://github.com/python-pillow/Pillow/pull/7244
- github.com — https://github.com/python-pillow/Pillow/commit/1fe1bb49c452b0318cad12ea9d97c3bef…
- devhub.checkmarx.com — https://devhub.checkmarx.com/cve-details/CVE-2023-44271/
- lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html
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