Description (CNA)
A flaw was found in libsolv. A stack-based buffer overflow vulnerability exists in the PGP verification component due to incorrect length handling when copying EdDSA 's' MPI into a stack buffer. A remote attacker could craft a malicious Ed25519 PGP signature with mismatched MPI lengths. Processing this crafted signature could lead to a denial of service in automated package or repository processing workflows.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| OpenSUSE / libsolv | affected 0.6.4 before 0.7.38 |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected |
| Red Hat / Red Hat Enterprise Linux 7 | unaffected |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected |
| Red Hat / Red Hat Hardened Images | unaffected |
| Red Hat / Red Hat OpenShift Container Platform 4 | unaffected |
| Red Hat / Red Hat OpenShift Container Platform 4 | unaffected |
| Red Hat / Red Hat Satellite 6 | unaffected |
| Red Hat / Red Hat Update Infrastructure 4 for Cloud Providers | unaffected |
CWE
CWE-121
References
- https://access.redhat.com/security/cve/CVE-2026-48863
- https://bugzilla.redhat.com/show_bug.cgi?id=2460975
- https://github.com/openSUSE/libsolv/commit/44f8c085045b1f771641091bbb2b810d12cff9e8#diff-309f245ec9b669ec78b8159c39e6f50130b4d4a0448f742685f7833d04bc4caaR592
ADP enrichment
A flaw was found in libsolv. A stack-based buffer overflow vulnerability exists in the PGP verification component due to incorrect length handling when copying EdDSA 's' MPI into a stack buffer. A remote attacker could craft a malicious Ed25519 PGP signature with mismatched MPI lengths. Processing this crafted signature could lead to a denial of service in automated package or repository processing workflows.
No English description supplied.
No references supplied.