high CVSS 7.8 EPSS 0.25%

CVE-2024-50007·Kernel vulnerability

In the Linux kernel, the following vulnerability has been resolved: ALSA: asihpi: Fix potential OOB array access ASIHPI driver stores some values in the static array upon a response from the driver, and its index depends on the firmware. We shouldn't trust it blindly. This patch adds a sanity check of the array index to fit in the array size.

Severity
high
Software
Kernel
Fixed in
6.11.3
Published

How likely is exploitation

FIRST's Exploit Prediction Scoring System puts the probability of this CVE being exploited in the next 30 days at 0.25% — higher than 16% of all published CVEs. EPSS is an independent forecast of exploitation, not a severity rating: it says nothing about how much damage a successful attack does, which is what a CVSS score measures.

Read the two together. CVE-2024-50007 scores 7.8 on CVSS, so a successful attack would be serious — but at 0.25%, almost nobody is currently attempting it. That is a different situation from a flaw under mass exploitation, and it is usually the difference between patching on your next maintenance window and patching tonight.

Affected versions

From: 6.11

Until: 6.11.3

Fixed in: 6.11.3

How to fix this CVE

Update your Linux kernel to version 6.11.3 or later to patch an out-of-bounds array access vulnerability in the ALSA ASIHPI audio driver. This vulnerability could allow a local attacker with limited privileges to read sensitive kernel memory or cause a system crash. Apply the patch immediately to systems running kernel versions 6.11 through 6.11.2 that have ASIHPI audio hardware support enabled.

sudo dnf update kernel kernel-devel

Defensia detects this vulnerability

How to check if you are affected

  1. Run `uname -r` to check your current kernel version and confirm if it falls within 6.11.0-6.11.2
  2. Check if ASIHPI audio driver is loaded by running `lsmod | grep asihpi`
  3. Review dmesg logs for kernel panics or memory access violations: `sudo dmesg | grep -i "oob\|out of bounds\|asihpi"`
  4. After applying the patch, reboot and verify the new kernel version with `uname -r` to ensure it shows 6.11.3 or higher

FAQ

What is CVE-2024-50007?

This is an out-of-bounds array access vulnerability in the Linux ALSA ASIHPI audio driver where the firmware response index is not properly validated before being used to access a static array, potentially allowing unauthorized memory access.

Is CVE-2024-50007 being actively exploited?

No, this vulnerability is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog and no public exploits are currently available.

What versions of Kernel are affected by CVE-2024-50007?

Linux kernel versions 6.11.0, 6.11.1, and 6.11.2 are vulnerable. The fix is available in kernel 6.11.3 and later.

How do I check if my server is vulnerable to CVE-2024-50007?

Run `uname -r` to check your kernel version, and then run `lsmod | grep asihpi` to verify if the affected ASIHPI audio driver module is loaded on your system.

Does Defensia detect CVE-2024-50007?

Yes — Defensia's CVE advisory scanner compares installed kernel package versions against the NVD database. If a vulnerable kernel version is detected on a monitored server, CVE-2024-50007 will appear in your dashboard with remediation steps.

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References

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