CVE-2024-53150
ALSA: usb-audio: Fix out of bounds reads when finding clock sources
Exploited in the wild. In CISA KEV since 2025‑04‑09. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- LinuxAffected: ≥ b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a, < a632bdcb359fd8145e86486ff8612da98e239acdUpgrade to: a632bdcb359fd8145e86486ff8612da98e239acdAffected: ≥ b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a, < 45a92cbc88e4013bfed7fd2ccab3ade45f8e896bUpgrade to: 45a92cbc88e4013bfed7fd2ccab3ade45f8e896bAffected: ≥ b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a, < ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9Upgrade to: ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9Affected: ≥ b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a, < da13ade87a12dd58829278bc816a61bea06a56a9Upgrade to: da13ade87a12dd58829278bc816a61bea06a56a9 + 8 more branchesStated by: CVE record
- Сообщество свободного программного обеспечения Debian GNU/LinuxAffected: 11Upgrade to: not statedStated by: BDU
- ООО «Ред Софт» РЕД ОСAffected: 7.3Upgrade to: not statedStated by: BDU
- ООО «РусБИТех-Астра» Astra Linux Special EditionAffected: 1.7Upgrade to: not statedStated by: BDU
- Red Hat Inc. Red Hat Enterprise LinuxAffected: 9Upgrade to: not statedStated by: BDU
Versions as the sources state them. 5 more products have version data. Full version matrix after sign-in
Coverage timeline
0 publishersAdded to CISA KEV catalog
Sourced from public security reporting — each date is when it was published, not when it happened.
What it is
From the CVE record
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out of bounds reads when finding clock sources The current USB-audio driver code doesn't check bLength of each descriptor at traversing for clock descriptors. That is, when a device provides a bogus descriptor with a shorter bLength, the driver might hit out-of-bounds reads. For addressing it, this patch adds sanity checks to the validator functions for the clock descriptor traversal. When the descriptor length is shorter than expected, it's skipped in the loop. For the clock source and clock multiplier descriptors, we can just check bLength against the sizeof() of each descriptor type. OTOH, the clock selector descriptor of UAC2 and UAC3 has an array of bNrInPins elements and two more fields at its tail, hence those have to be checked in addition to the sizeof() check.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Listed as exploited in the wild since 2025-04-09.
US federal agencies must remediate by 2025-04-30.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
1.4% chance of exploitation activity in the next 30 days, which ranks it in the 71st percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
- Attention now
Rising.
Lifecycle
7 events over 548 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Added to CISA KEV
- Publishedweakness classified, att&ck mapped
Affected products
And 5 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Scored 7.1 by NVD.
How it is reached
- Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity NoneNo integrity impact
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
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