CVE-2023-1513
First published: Mon Mar 20 2023(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.2 | 6.2 |
| Linux kernel | <6.2 | |
| Fedora | =37 | |
| Red Hat Enterprise Linux | =7.0 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux | =9.0 | |
| Linux Kernel | <6.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.16-1 | |
| <6.2 | ||
| =37 | ||
| =7.0 | ||
| =8.0 | ||
| =9.0 |
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Reference Links
- 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@linuxfoundation.org/
- https://launchpad.net/bugs/cve/CVE-2023-1513
- https://lore.kernel.org/kvm/20230214103304.3689213-1-gregkh%40linuxfoundation.org/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2179894
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1513
- https://nvd.nist.gov/vuln/detail/CVE-2023-1513
- https://security-tracker.debian.org/tracker/CVE-2023-1513
- https://ubuntu.com/security/CVE-2023-1513
- https://git.kernel.org/linus/2c10b61421a28e95a46ab489fd56c0f442ff6952
Frequently Asked Questions
What is the severity of CVE-2023-1513?
CVE-2023-1513 has been rated with a moderate severity due to its potential information leak risk.
How does CVE-2023-1513 affect system security?
CVE-2023-1513 can lead to exposure of uninitialized memory, which may leak sensitive information from the kernel to user space.
Which operating systems are affected by CVE-2023-1513?
CVE-2023-1513 impacts multiple versions of the Linux Kernel, as well as specific versions of Red Hat Enterprise Linux and Fedora.
How do I fix CVE-2023-1513?
To remediate CVE-2023-1513, upgrade to Linux Kernel version 6.2 or apply the latest patches provided by your distribution.
Is CVE-2023-1513 specific to 32-bit systems?
Yes, CVE-2023-1513 primarily affects 32-bit systems when using the KVM_GET_DEBUGREGS ioctl, leading to uninitialized data leaks.
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