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NVD / CVE Program· CNA Linux

CVE-2024-36901: ipv6: prevent NULL dereference in ip6_output()

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: 0.26% (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 2272e2db38f2e85929278146d7c770f22f528579, 4db783d68b9b39a411a96096c10828ff5dfada7a, 55f7eb4001ef2a3b48cf039cf263f9ed0ec5a488; azl3 kernel 6.6.29.1-5 on Azure Linux 3.0 6.6.35.1-4; azl3 kernel 6.6.35.1-4 on Azure Linux 3.0 6.6.35.1-4.

Low priority for now. Upgrade to Linux Linux 2272e2db38f2e85929278146d7c770f22f528579, 4db783d68b9b39a411a96096c10828ff5dfada7a, 55f7eb4001ef2a3b48cf039cf263f9ed0ec5a488; azl3 kernel 6.6.29.1-5 on Azure Linux 3.0 6.6.35.1-4; azl3 kernel 6.6.35.1-4 on Azure Linux 3.0 6.6.35.1-4 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: ipv6: prevent NULL dereference in ip6_output() According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 30, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 17th percentile

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.

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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 kernel2.6.27 and later · before 6.1.91
  • linux linux kernel6.2 and later · before 6.6.31
  • linux linux kernel6.7 and later · before 6.8.10

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

    • 2.6.27affected
    • 778d80be52699596bf70e0eb0761cf5e1e46088d and later · before 9df3b2474a627994433a87cbf325a562555b17deaffected · git
    • 778d80be52699596bf70e0eb0761cf5e1e46088d and later · before 2272e2db38f2e85929278146d7c770f22f528579affected · git
    • 778d80be52699596bf70e0eb0761cf5e1e46088d and later · before ea0cb87402f774b0e1214ffba0f57028b27cf155affected · git
    • 778d80be52699596bf70e0eb0761cf5e1e46088d and later · before e31b25cc2066d3f2b6c38579253882008d4469b0affected · git
    • 778d80be52699596bf70e0eb0761cf5e1e46088d and later · before 55f7eb4001ef2a3b48cf039cf263f9ed0ec5a488affected · git
    • 778d80be52699596bf70e0eb0761cf5e1e46088d and later · before 4db783d68b9b39a411a96096c10828ff5dfada7aaffected · git
    • before 2.6.27not affected · semver
    • 5.10.222 and later · up to and including 5.10.*not affected · semver
    • 5.15.163 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:11linuxbefore 5.10.223-15.10.223-1
Debian:12linuxbefore 6.1.94-16.1.94-1
Debian:13linuxbefore 6.8.11-16.8.11-1
Red Hat:rhel_eus:9.4::appstreambpftool-debuginfobefore 0:7.3.0-427.61.1.el9_40:7.3.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-debuginfobefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-develbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-devel-matchedbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debuginfobefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-develbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-devel-matchedbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-debuginfobefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-develbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-devel-matchedbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfobefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-aarch64before 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-ppc64lebefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-s390xbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-x86_64before 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-develbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-devel-matchedbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-docbefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-rt-debug-debuginfobefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-rt-debuginfobefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-tools-debuginfobefore 0:5.14.0-427.61.1.el9_40:5.14.0-427.61.1.el9_4

+57

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-2024-36898May 30, 2024 · gpiolib: cdev: fix uninitialised kfifo
    31Monitor
  • ← EarlierCVE-2024-36900May 30, 2024 · net: hns3: fix kernel crash when devlink reload during initialization
    22Monitor
  • Later →CVE-2024-36906May 30, 2024 · ARM: 9381/1: kasan: clear stale stack poison
    31Monitor

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 Linux2272e2db38f2e85929278146d7c770f22f528579Vendor (CNA)
Linux Linux4db783d68b9b39a411a96096c10828ff5dfada7aVendor (CNA)
Linux Linux55f7eb4001ef2a3b48cf039cf263f9ed0ec5a488Vendor (CNA)
Linux Linux9df3b2474a627994433a87cbf325a562555b17deVendor (CNA)
Linux Linuxe31b25cc2066d3f2b6c38579253882008d4469b0Vendor (CNA)
Linux Linuxea0cb87402f774b0e1214ffba0f57028b27cf155Vendor (CNA)
azl3 kernel 6.6.29.1-5 on Azure Linux 3.06.6.35.1-4 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.35.1-4 on Azure Linux 3.06.6.35.1-4 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.164.1-1 on CBL Mariner 2.05.15.164.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.05.15.164.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.94-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-427.61.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage 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)

CWE-476 · NULL Pointer Dereference

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