Bug 2497459 (CVE-2026-41516)
| Summary: | CVE-2026-41516 OP-TEE: OP-TEE: Information disclosure via Bleichenbacher-style padding oracle in RSA PKCS#1 v1.5 decryption | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | Keywords: | Security |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in OP-TEE (Trusted Execution Environment). The RSA PKCS#1 v1.5 decryption implementation within the Hisilicon HPRE crypto driver uses a non-constant-time comparison function for label hash verification, leading to multiple distinguishable error paths. This creates a Bleichenbacher-style padding oracle vulnerability. A local attacker with low privileges could exploit this to recover sensitive RSA PKCS#1 v1.5 plaintext information.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2497716 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-07-06 20:02:25 UTC
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