DEBIAN-CVE-2026-71968
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-71968
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71968.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-71968
- Upstream
- Published
- 2026-08-10T19:17:32Z
- Modified
- 2026-09-14T17:03:29Z
- Severity
-
- 8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- [none]
- Details
-
OP-TEE OS through 4.10.0, fixed in commit 8794043, contains a use-after-free vulnerability in the Trusted Application loader that allows attackers with the ability to load a signed Trusted Application to corrupt secure-world kernel memory by setting the TA_FLAG_CONCURRENT flag in a user TA signed header. Attackers can cause two concurrent sessions to operate on the same shared context without locking, corrupting the uctx->vm_info.regions list during memref parameter mapping and unmapping to free vm_region nodes still in use, resulting in a use-after-free in S-EL1 secure-world kernel memory.
- References
Affected packages
Debian:13 / optee-os
Package
- Name
- optee-os
- Purl
- pkg:deb/debian/optee-os?arch=source&distro=trixie