NVD / CVE Program· CNA Linux

CVE-2024-42238: firmware: cs_dsp: Return error if block header overflows file

Noroxi assessment

Priority: Monitor (action score 22/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Linux Linux 6eabd23383805725eff416c203688b7a390d4153, 90ab191b7d181057d71234e8632e06b5844ac38e, 959fe01e85b7241e3ec305d657febbe82da16a02.

Low priority for now. Upgrade to Linux Linux 6eabd23383805725eff416c203688b7a390d4153, 90ab191b7d181057d71234e8632e06b5844ac38e, 959fe01e85b7241e3ec305d657febbe82da16a02 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: firmware: cs_dsp: Return error if block header overflows file Return an error from cs_dsp_power_up() if a block header is longer than the amount of data left in the file. The previous code in cs_dsp_load() and cs_dsp_load_coeff() would loop while there was enough data left in the file for a valid region. This protected against overrunning the end of the file data, but it didn't abort the file processing with an error.

MediumCVSS 5.5 · v3.1—No exploit Fix available

BDU:2024-08737

Published: Aug 7, 2024
Updated: Jun 17, 2026
EPSS: 0.2% · 11th percentile
CWE: CWE-120

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 22 / 40 · 5.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linux linux kernel5.16 and later · before 6.1.100
linux linux kernel6.2 and later · before 6.6.41
linux linux kernel6.7 and later · before 6.9.10

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 5.16affected
- f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 and later · before b8be70566b33abbd0180105070b4c67cfef8c44faffected · git
- f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 and later · before 90ab191b7d181057d71234e8632e06b5844ac38eaffected · git
- f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 and later · before 6eabd23383805725eff416c203688b7a390d4153affected · git
- f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 and later · before 959fe01e85b7241e3ec305d657febbe82da16a02affected · git
- before 5.16not affected · semver
- 6.1.100 and later · up to and including 6.1.*not affected · semver
- 6.6.41 and later · up to and including 6.6.*not affected · semver
- 6.9.10 and later · up to and including 6.9.*not affected · semver
- 6.10 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 6.1.106-1	6.1.106-1
Debian:13	linux	before 6.9.10-1	6.9.10-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
90Now
CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
89Now
CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
85Now

Published before and after this one in the same product

← EarlierCVE-2024-42236Aug 7, 2024 · usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()
22Monitor
← EarlierCVE-2024-42237Aug 7, 2024 · firmware: cs_dsp: Validate payload length before processing block
22Monitor
Later →CVE-2024-42240Aug 7, 2024 · x86/bhi: Avoid warning in #DB handler due to BHI mitigation
22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	6eabd23383805725eff416c203688b7a390d4153	Vendor (CNA)
Linux Linux	90ab191b7d181057d71234e8632e06b5844ac38e	Vendor (CNA)
Linux Linux	959fe01e85b7241e3ec305d657febbe82da16a02	Vendor (CNA)
Linux Linux	b8be70566b33abbd0180105070b4c67cfef8c44f	Vendor (CNA)
debian:linux	6.1.106-1 · Debian:12	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2023-44466313 days apartAn issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5.
48Plan
CVE-2023-5273578 days apartbpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself
36Monitor
CVE-2024-26927101 days apartASoC: SOF: Add some bounds checking to firmware data
33Monitor
CVE-2024-410399 days apartfirmware: cs_dsp: Fix overflow checking of wmfw header
31Monitor
CVE-2024-4090226 days apartjfs: xattr: fix buffer overflow for invalid xattr
31Monitor
CVE-2024-3948033 days apartkdb: Fix buffer overflow during tab-complete
31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:09 PM UTC

For records you follow, these changes also arrive as notifications. →

References

git.kernel.org/stable/c/6eabd23383805725eff416c203688b7a390d4153

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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