5.5

CVE-2024-50038: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-50038DEBIAN-CVE-2024-50038
Published 21-10-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-50038 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 38 · Related 36
DLA-4008-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1RHSA-2025:6966

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid NFPROTO_UNSPEC where needed syzbot managed to call xt_cluster match via ebtables: WARNING: CPU: 0 PID: 11 at net/netfilter/xt_cluster.c:72 xt_cluster_mt+0x196/0x780 [..] ebt_do_table+0x174b/0x2a40 Module registers to NFPROTO_UNSPEC, but it assumes ipv4/ipv6 packet processing. As this is only useful to restrict locally terminating TCP/UDP traffic, register this for ipv4 and ipv6 family only. Pablo points out that this is a general issue, direct users of the set/getsockopt interface can call into targets/matches that were only intended for use with ip(6)tables. Check all UNSPEC matches and targets for similar issues: - matches and targets are fine except if they assume skb_network_header() is valid -- this is only true when called from inet layer: ip(6) stack pulls the ip/ipv6 header into linear data area. - targets that return XT_CONTINUE or other xtables verdicts must be restricted too, they are incompatbile with the ebtables traverser, e.g. EBT_CONTINUE is a completely different value than XT_CONTINUE. Most matches/targets are changed to register for NFPROTO_IPV4/IPV6, as they are provided for use by ip(6)tables. The MARK target is also used by arptables, so register for NFPROTO_ARP too. While at it, bail out if connbytes fails to enable the corresponding conntrack family. This change passes the selftests in iptables.git.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

0.00 pp

From 0.23% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu134 products
  • linuxAll versions (No fix recorded) | < 5.15.0-127.137 | < 6.8.0-56.58
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1073.79 | < 6.8.0-1025.27
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0269ea4937343536ec7e85649932bc8c9686ea78, < 85ff9a0f793ca52c527e75cd40a69c948627ebde | ≥ 0269ea4937343536ec7e85649932bc8c9686ea78, < 8f482bb7e27b37f1f734bb9a8eeb28b23d59d189 | ≥ 0269ea4937343536ec7e85649932bc8c9686ea78, < 997f67d813ce0cf5eb3cdb8f124da68141e91b6c | ≥ 0269ea4937343536ec7e85649932bc8c9686ea78, < 4cdc55ec6222bb195995cc58f7cb46e4d8907056 | ≥ 0269ea4937343536ec7e85649932bc8c9686ea78, < 0bfcb7b71e735560077a42847f69597ec7dcc326 | 2.6.30
  • linux_kernel≥ 2.6.30, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.57 | ≥ 6.7, < 6.11.4 | 6.12:rc1 | 6.12:rc2
Debian1 product
  • linux< 6.1.115-1 | < 6.11.4-1

3 vendors · 137 products

References

32 links
Show all 32 references