CVE-2024-49944: sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start
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: 0.27% (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 0e4e2e60556c6ed00e8450b720f106a268d23062, 7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7, 89bbead9d897c77d0b566349c8643030ff2abeba; cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.0 5.15.173.1-1; cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.0 5.15.173.1-1.
Low priority for now. Upgrade to Linux Linux 0e4e2e60556c6ed00e8450b720f106a268d23062, 7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7, 89bbead9d897c77d0b566349c8643030ff2abeba; cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.0 5.15.173.1-1; cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.0 5.15.173.1-1 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: sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start In sctp_listen_start() invoked by sctp_inet_listen(), it should set the sk_state back to CLOSED if sctp_autobind() fails due to whatever reason. Otherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)->reuse is already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_hash will be dereferenced as sk_state is LISTENING, which causes a crash as bind_hash is NULL. KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617 Call Trace: <TASK> __sys_listen_socket net/socket.c:1883 [inline] __sys_listen+0x1b7/0x230 net/socket.c:1894 __do_sys_listen net/socket.c:1902 [inline]
- Published
- Oct 21, 2024
- Updated
- Oct 15, 2026
- EPSS
- 0.2% · 20th percentile
- CWE
- —
Report tools
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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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.
We use this product, ask for helpAffected 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 6.1.113
- linux linux kernel2.6.30 and later · before 5.10.227
- linux linux kernel5.11 and later · before 5.15.168
- linux linux kernel6.11 and later · before 6.11.3
- linux linux kernel6.2 and later · before 6.6.55
- linux linux kernel6.7 and later · before 6.10.14
- 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
- 2.6.30affected
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before 89bbead9d897c77d0b566349c8643030ff2abebaaffected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before 0e4e2e60556c6ed00e8450b720f106a268d23062affected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before dd70c8a89ef99c3d53127fe19e51ef47c3f860faaffected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before e7a8442195e8ebd97df467ce4742980ab57edcceaffected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before 9230a59eda0878d7ecaa901d876aec76f57bd455affected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before 7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7affected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before f032e1dac30b3376c7d6026fb01a8c403c47a80daffected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5affected · git
- 5e8f3f703ae4e4af65e2695e486b3cd198328863 and later · before 8beee4d8dee76b67c75dc91fd8185d91e845c160affected · git
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 6.1.115-1 | 6.1.115-1 |
| Debian:13 | linux | before 6.11.4-1 | 6.11.4-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-64kb | before 5.14.21-150500.55.91.1 | 5.14.21-150500.55.91.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-docs | before 5.14.21-150500.55.91.1 | 5.14.21-150500.55.91.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-obs-build | before 5.14.21-150500.55.91.1 | 5.14.21-150500.55.91.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-source | before 5.14.21-150500.55.91.1 | 5.14.21-150500.55.91.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-syms | before 5.14.21-150500.55.91.1 | 5.14.21-150500.55.91.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | before 4.12.14-122.244.1 | 4.12.14-122.244.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_64 | before 1-8.5.1 | 1-8.5.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_22 | before 1-150500.11.3.1 | 1-150500.11.3.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default | before 5.14.21-150500.55.91.1 | 5.14.21-150500.55.91.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default-base | before 5.14.21-150500.55.91.1.150500.6.41.1 | 5.14.21-150500.55.91.1.150500.6.41.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-source | before 4.12.14-122.244.1 | 4.12.14-122.244.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-syms | before 4.12.14-122.244.1 | 4.12.14-122.244.1 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-zfcpdump | before 5.14.21-150500.55.91.1 | 5.14.21-150500.55.91.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- 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 KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
Published before and after this one in the same product
- ← EarlierCVE-2024-49938Oct 21, 2024 · wifi: ath9k_htc: Use __skb_set_length() for resetting urb before resubmit22Monitor
- ← EarlierCVE-2024-49940Oct 21, 2024 · l2tp: prevent possible tunnel refcount underflow22Monitor
- Later →CVE-2024-49945Oct 21, 2024 · net/ncsi: Disable the ncsi work before freeing the associated structure22Monitor
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 | 0e4e2e60556c6ed00e8450b720f106a268d23062 | Vendor (CNA) |
| Linux Linux | 7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7 | Vendor (CNA) |
| Linux Linux | 89bbead9d897c77d0b566349c8643030ff2abeba | Vendor (CNA) |
| Linux Linux | 8beee4d8dee76b67c75dc91fd8185d91e845c160 | Vendor (CNA) |
| Linux Linux | 9230a59eda0878d7ecaa901d876aec76f57bd455 | Vendor (CNA) |
| Linux Linux | dd70c8a89ef99c3d53127fe19e51ef47c3f860fa | Vendor (CNA) |
| Linux Linux | e7a8442195e8ebd97df467ce4742980ab57edcce | Vendor (CNA) |
| Linux Linux | e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5 | Vendor (CNA) |
| Linux Linux | f032e1dac30b3376c7d6026fb01a8c403c47a80d | Vendor (CNA) |
| cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.0 | 5.15.173.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.0 | 5.15.173.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.173.1-1 on CBL Mariner 2.0 | 5.15.173.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.115-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.14.21-150500.55.91.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-default | 5.14.21-150500.55.91.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-default-base | 5.14.21-150500.55.91.1.150500.6.41.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-docs | 5.14.21-150500.55.91.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP5_Update_22 | 1-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5 | Package registry (OSV) |
| suse:kernel-obs-build | 5.14.21-150500.55.91.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-source | 5.14.21-150500.55.91.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-syms | 5.14.21-150500.55.91.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.14.21-150500.55.91.1 · SUSE:Linux Enterprise Server 15 SP5-LTSS | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP5_Update_64 | 1-8.5.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | 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 researchersFinders, 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
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (12 more)Show less
- git.kernel.org/stable/c/7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7
- git.kernel.org/stable/c/89bbead9d897c77d0b566349c8643030ff2abeba
- git.kernel.org/stable/c/8beee4d8dee76b67c75dc91fd8185d91e845c160
- git.kernel.org/stable/c/9230a59eda0878d7ecaa901d876aec76f57bd455
- git.kernel.org/stable/c/dd70c8a89ef99c3d53127fe19e51ef47c3f860fa
- git.kernel.org/stable/c/e7a8442195e8ebd97df467ce4742980ab57edcce
- git.kernel.org/stable/c/e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5
- git.kernel.org/stable/c/f032e1dac30b3376c7d6026fb01a8c403c47a80d
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- cert-portal.siemens.com/productcert/html/ssa-265688.html
- cert-portal.siemens.com/productcert/html/ssa-355557.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.