7.1

CVE-2024-44983: netfilter: flowtable: validate vlan header

Modified
AliasesUBUNTU-CVE-2024-44983DEBIAN-CVE-2024-44983
Published 04-09-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-44983 is a high (CVSS 7.1) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 10
DLA-4008-1DSA-5782-1MGASA-2024-0309MGASA-2024-0310USN-7100-1USN-7100-2

Timeline

  1. 04-09-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu117 products
  • linux< 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 4cd91f7c290f64fe430867ddbae10bff34657b6a, < c05155cc455785916164aa5e1b4605a2ae946537 | ≥ 4cd91f7c290f64fe430867ddbae10bff34657b6a, < d9384ae7aec46036d248d1c2c2757e471ab486c3 | ≥ 4cd91f7c290f64fe430867ddbae10bff34657b6a, < 0279c35d242d037abeb73d60d06a6d1bb7f672d9 | ≥ 4cd91f7c290f64fe430867ddbae10bff34657b6a, < 043a18bb6cf16adaa2f8642acfde6e8956a9caaa | ≥ 4cd91f7c290f64fe430867ddbae10bff34657b6a, < 6ea14ccb60c8ab829349979b22b58a941ec4a3ee | 5.13
  • linux_kernel≥ 5.13, < 5.15.166 | ≥ 5.16, < 6.1.107 | ≥ 6.2, < 6.6.48 | ≥ 6.7, < 6.10.7 | 6.11:rc1 | 6.11:rc2 | 6.11:rc3 | 6.11:rc4
Debian1 product
  • linux< 6.1.112-1 | < 6.10.7-1

3 vendors · 120 products

References

21 links
Show all 21 references