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NVD / CVE Program· CNA Linux

CVE-2024-36975: KEYS: trusted: Do not use WARN when encode fails

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 050bf3c793a07f96bd1e2fd62e1447f731ed733b, 1c652e1e10676f942149052d9329b8bf2703529a, 681935009fec3fc22af97ee312d4a24ccf3cf087.

Low priority for now. Upgrade to Linux Linux 050bf3c793a07f96bd1e2fd62e1447f731ed733b, 1c652e1e10676f942149052d9329b8bf2703529a, 681935009fec3fc22af97ee312d4a24ccf3cf087 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: KEYS: trusted: Do not use WARN when encode fails When asn1_encode_sequence() fails, WARN is not the correct solution. 1. asn1_encode_sequence() is not an internal function (located in lib/asn1_encode.c). 2. Location is known, which makes the stack trace useless. 3. Results a crash if panic_on_warn is set. It is also noteworthy that the use of WARN is undocumented, and it should be avoided unless there is a carefully considered rationale to use it. Replace WARN with pr_err, and print the return value instead, which is only useful piece of information.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jun 18, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

22

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-36975

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

VendorProduct
linuxlinux kernel

Affected versions

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

  • linux linux kernel5.13 and later · before 5.15.160
  • linux linux kernel5.16 and later · before 6.1.92
  • linux linux kernel6.2 and later · before 6.6.32
  • linux linux kernel6.7 and later · before 6.8.11
  • linux linux kernel6.9 and later · before 6.9.2

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

    • 5.13affected
    • f2219745250f388edacabe6cca73654131c67d0a and later · before 96f650995c70237b061b497c66755e32908f8972affected · git
    • f2219745250f388edacabe6cca73654131c67d0a and later · before 681935009fec3fc22af97ee312d4a24ccf3cf087affected · git
    • f2219745250f388edacabe6cca73654131c67d0a and later · before 1c652e1e10676f942149052d9329b8bf2703529aaffected · git
    • f2219745250f388edacabe6cca73654131c67d0a and later · before d32c6e09f7c4bec3ebc4941323f0aa6366bc1487affected · git
    • f2219745250f388edacabe6cca73654131c67d0a and later · before ff91cc12faf798f573dab2abc976c1d5b1862feaaffected · git
    • f2219745250f388edacabe6cca73654131c67d0a and later · before 050bf3c793a07f96bd1e2fd62e1447f731ed733baffected · git
    • before 5.13not affected · semver
    • 5.15.160 and later · up to and including 5.15.*not affected · semver
    • 6.1.92 and later · up to and including 6.1.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.94-16.1.94-1
Debian:13linuxbefore 6.8.11-16.8.11-1

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-2024-36972Jun 10, 2024 · af_unix: Update unix_sk(sk)->oob_skb under sk_receive_queue lock.
    31Monitor
  • ← EarlierCVE-2024-36973Jun 17, 2024 · misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()
    31Monitor
  • Later →CVE-2024-36976Jun 18, 2024 · Revert "media: v4l2-ctrls: show all owned controls in log_status"
    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 / packageFixed versionSource
Linux Linux050bf3c793a07f96bd1e2fd62e1447f731ed733bVendor (CNA)
Linux Linux1c652e1e10676f942149052d9329b8bf2703529aVendor (CNA)
Linux Linux681935009fec3fc22af97ee312d4a24ccf3cf087Vendor (CNA)
Linux Linux96f650995c70237b061b497c66755e32908f8972Vendor (CNA)
Linux Linuxd32c6e09f7c4bec3ebc4941323f0aa6366bc1487Vendor (CNA)
Linux Linuxff91cc12faf798f573dab2abc976c1d5b1862feaVendor (CNA)
debian:linux6.1.94-1 · Debian:12Package 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.

No nightly-computed relations.

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)

—

CVSS vector

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

nvd-primary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (5 more)

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

All records