CVE-2023-27476
OWSLib's XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib's XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See `GHSA-8h9c-r582-mggc` for details.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- osgeo/owslib
- Source
- security-advisories@github.com
References
- https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122fPatch
- https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggcVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00032.html
- https://securitylab.github.com/advisories/GHSL-2022-131_owslib/Broken Link
- https://www.debian.org/security/2023/dsa-5426
- https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122fPatch
- https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggcVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00032.html
- https://securitylab.github.com/advisories/GHSL-2022-131_owslib/Broken Link
- https://www.debian.org/security/2023/dsa-5426
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.