CVE-2024-39499: vmci: prevent speculation leaks by sanitizing event in event_deliver()
First published: Fri Jul 12 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: vmci: prevent speculation leaks by sanitizing event in event_deliver() Coverity spotted that event_msg is controlled by user-space, event_msg->event_data.event is passed to event_deliver() and used as an index without sanitization. This change ensures that the event index is sanitized to mitigate any possibility of speculative information leaks. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc. Only compile tested, no access to HW.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.317 | 4.19.317 |
| redhat/kernel | <5.4.279 | 5.4.279 |
| redhat/kernel | <5.10.221 | 5.10.221 |
| redhat/kernel | <5.15.162 | 5.15.162 |
| redhat/kernel | <6.1.95 | 6.1.95 |
| redhat/kernel | <6.6.35 | 6.6.35 |
| redhat/kernel | <6.9.6 | 6.9.6 |
| redhat/kernel | <6.10 | 6.10 |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 6.12.22-1 | |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/58730dfbd4ae01c1b022b0d234a8bf8c02cdfb81
- https://git.kernel.org/stable/c/681967c4ff210e06380acf9b9a1b33ae06e77cbd
- https://git.kernel.org/stable/c/757804e1c599af5d2a7f864c8e8b2842406ff4bb
- https://git.kernel.org/stable/c/8003f00d895310d409b2bf9ef907c56b42a4e0f4
- https://git.kernel.org/stable/c/95ac3e773a1f8da83c4710a720fbfe80055aafae
- https://git.kernel.org/stable/c/95bac1c8bedb362374ea1937b1d3e833e01174ee
- https://git.kernel.org/stable/c/e293c6b38ac9029d76ff0d2a6b2d74131709a9a8
- https://git.kernel.org/stable/c/f70ff737346744633e7b655c1fb23e1578491ff3
- https://access.redhat.com/errata/RHSA-2024:7001
- https://access.redhat.com/errata/RHSA-2024:7000
- https://access.redhat.com/errata/RHSA-2024:9315
- https://access.redhat.com/errata/RHSA-2024:11313
- https://bugzilla.redhat.com/show_bug.cgi?id=2297471
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39499
- https://nvd.nist.gov/vuln/detail/CVE-2024-39499
- https://launchpad.net/bugs/cve/CVE-2024-39499
- https://security-tracker.debian.org/tracker/CVE-2024-39499
- https://ubuntu.com/security/CVE-2024-39499
- https://git.kernel.org/linus/8003f00d895310d409b2bf9ef907c56b42a4e0f4
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-39499?
CVE-2024-39499 has a high severity rating due to potential speculation leaks in the Linux kernel.
How do I fix CVE-2024-39499?
To fix CVE-2024-39499, update your kernel to the specified versions such as 4.19.317 or 5.4.279 as outlined by Red Hat.
Which versions of the Linux kernel are affected by CVE-2024-39499?
CVE-2024-39499 affects multiple Linux kernel versions including those prior to 4.19.317 and 5.15.162.
Is CVE-2024-39499 specific to any Linux distribution?
Yes, CVE-2024-39499 has been reported primarily in Red Hat and Debian distributions of the Linux kernel.
What kind of vulnerability is CVE-2024-39499?
CVE-2024-39499 is a vulnerability related to user-space controlled event message handling in the Linux kernel.
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