Improper Initialization Affecting kernel-debug-core package, versions <0:4.18.0-553.el8_10
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGCORE-3364906
- published 20 Mar 2023
- disclosed 14 Feb 2023
Introduced: 14 Feb 2023
CVE-2023-1513 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug-core to version 0:4.18.0-553.el8_10 or higher.
This issue was patched in RHSA-2024:3138.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-core package and not the kernel-debug-core package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
A flaw was found in KVM. When calling the KVM_GET_DEBUGREGS ioctl, on 32-bit systems, there might be some uninitialized portions of the kvm_debugregs structure that could be copied to userspace, causing an information leak.
References
- https://access.redhat.com/security/cve/CVE-2023-1513
- https://lore.kernel.org/kvm/20230214103304.3689213-1-gregkh@linuxfoundation.org/
- https://bugzilla.redhat.com/show_bug.cgi?id=2179892
- https://github.com/torvalds/linux/commit/2c10b61421a28e95a46ab489fd56c0f442ff6952
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://lore.kernel.org/kvm/20230214103304.3689213-1-gregkh%40linuxfoundation.org/