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NVD / CVE Program· CNA Linux

CVE-2024-50143: udf: fix uninit-value use in udf_get_fileshortad

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.27% (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 0ce61b1f6b32df822b59c680cbe8e5ba5d335742, 1ac49babc952f48d82676979b20885e480e69be8, 264db9d666ad9a35075cc9ed9ec09d021580fbb1; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0ce61b1f6b32df822b59c680cbe8e5ba5d335742, 1ac49babc952f48d82676979b20885e480e69be8, 264db9d666ad9a35075cc9ed9ec09d021580fbb1; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1 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: udf: fix uninit-value use in udf_get_fileshortad Check for overflow when computing alen in udf_current_aext to mitigate later uninit-value use in udf_get_fileshortad KMSAN bug[1]. After applying the patch reproducer did not trigger any issue[2]. [1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df [2] https://syzkaller.appspot.com/x/log.txt?x=10242227980000

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Nov 7, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 20th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · Linux
7.8
agree

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2024-50143

When you'll hear from us

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  • when exploit code appears or is weaponized
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  • 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 kernelbefore 4.19.323
  • linux linux kernel4.20 and later · before 5.4.285
  • linux linux kernel5.5 and later · before 5.15.170
  • linux linux kernel5.16 and later · before 6.1.115
  • linux linux kernel6.2 and later · before 6.6.59
  • linux linux kernel6.7 and later · before 6.11.6
  • linux linux kernel6.12

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

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 5eb76fb98b3335aa5cca6a7db2e659561c79c32baffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 417bd613bdbe791549f7687bb1b9b8012ff111c2affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 0ce61b1f6b32df822b59c680cbe8e5ba5d335742affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 4fc0d8660e391dcd8dde23c44d702be1f6846c61affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 72e445df65a0aa9066c6fe2b8736ba2fcca6dac7affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 1ac49babc952f48d82676979b20885e480e69be8affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before e52e0b92ed31dc62afbda15c243dcee0bb5bb58daffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 264db9d666ad9a35075cc9ed9ec09d021580fbb1affected · git
    • before 2.6.12not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:11linuxbefore 5.10.247-15.10.247-1
Debian:12linuxbefore 6.1.115-16.1.115-1
Debian:13linuxbefore 6.11.6-16.11.6-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-azurebefore 6.4.0-150600.8.23.16.4.0-150600.8.23.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.33.1.150600.12.14.16.4.0-150600.23.33.1.150600.12.14.1
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-rtbefore 6.4.0-150600.10.23.16.4.0-150600.10.23.1
openSUSE:Leap 15.6kernel-rt_debugbefore 6.4.0-150600.10.23.16.4.0-150600.10.23.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-source-azurebefore 6.4.0-150600.8.23.16.4.0-150600.8.23.1
openSUSE:Leap 15.6kernel-source-rtbefore 6.4.0-150600.10.23.16.4.0-150600.10.23.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
openSUSE:Leap 15.6kernel-syms-azurebefore 6.4.0-150600.8.23.16.4.0-150600.8.23.1
openSUSE:Leap 15.6kernel-syms-rtbefore 6.4.0-150600.10.23.16.4.0-150600.10.23.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.33.16.4.0-150600.23.33.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-64kbbefore 5.14.21-150500.55.136.15.14.21-150500.55.136.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-docsbefore 5.14.21-150500.55.136.15.14.21-150500.55.136.1

+28

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-2024-50140Nov 7, 2024 · sched/core: Disable page allocation in task_tick_mm_cid()
    22Monitor
  • ← EarlierCVE-2024-50141Nov 7, 2024 · ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context
    22Monitor
  • Later →CVE-2024-50144Nov 7, 2024 · drm/xe: fix unbalanced rpm put() with fence_fini()
    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 Linux0ce61b1f6b32df822b59c680cbe8e5ba5d335742Vendor (CNA)
Linux Linux1ac49babc952f48d82676979b20885e480e69be8Vendor (CNA)
Linux Linux264db9d666ad9a35075cc9ed9ec09d021580fbb1Vendor (CNA)
Linux Linux417bd613bdbe791549f7687bb1b9b8012ff111c2Vendor (CNA)
Linux Linux4fc0d8660e391dcd8dde23c44d702be1f6846c61Vendor (CNA)
Linux Linux5eb76fb98b3335aa5cca6a7db2e659561c79c32bVendor (CNA)
Linux Linux72e445df65a0aa9066c6fe2b8736ba2fcca6dac7Vendor (CNA)
Linux Linuxe52e0b92ed31dc62afbda15c243dcee0bb5bb58dVendor (CNA)
azl3 kernel 6.6.57.1-7 on Azure Linux 3.06.6.64.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.64.2-1 on Azure Linux 3.06.6.64.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.05.15.173.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.05.15.173.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.173.1-1 on CBL Mariner 2.05.15.173.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.115-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.33.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.33.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-azure6.4.0-150600.8.23.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.33.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.33.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.33.1.150600.12.14.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-rt6.4.0-150600.10.23.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-rt_debug6.4.0-150600.10.23.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-azure6.4.0-150600.8.23.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-rt6.4.0-150600.10.23.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-azure6.4.0-150600.8.23.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-rt6.4.0-150600.10.23.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.33.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.23.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150600.23.33.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.33.1.150600.12.14.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)

+8

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-2024-5030212 days apartHID: core: zero-initialize the report bufferKEV
    52Plan
  • CVE-2024-4768517 days apartnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
    36Monitor
  • CVE-2024-36898161 days apartgpiolib: cdev: fix uninitialised kfifo
    31Monitor
  • CVE-2021-47553167 days apartsched/scs: Reset task stack state in bringup_cpu()
    31Monitor
  • CVE-2024-27022190 days apartfork: defer linking file vma until vma is fully initialized
    31Monitor
  • CVE-2025-38579285 days apartf2fs: fix KMSAN uninit-value in extent_info usage
    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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-908 · Use of Uninitialized Resource

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 (8 more)

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

All records