8.2

CVE-2024-50299: sctp: properly validate chunk size in sctp_sf_ootb()

Modified
AliasesUBUNTU-CVE-2024-50299DEBIAN-CVE-2024-50299
Published 19-11-2024Last modified 15-10-2026

Vulnerability summary

CVE-2024-50299 is a high (CVSS 8.2) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 49.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 8.2 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
8.2/10
010
High · v3.1 (CVE.org)
EPSS score
0.62%
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 60 · Related 57
DLA-4008-1DLA-4075-1DSA-5818-1LSN-0116-1RHSA-2025:6966SUSE-SU-2025:0236-1

Timeline

  1. 19-11-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: sctp: properly validate chunk size in sctp_sf_ootb() A size validation fix similar to that in Commit 50619dbf8db7 ("sctp: add size validation when walking chunks") is also required in sctp_sf_ootb() to address a crash reported by syzbot: BUG: KMSAN: uninit-value in sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_do_sm+0x181/0x93d0 net/sctp/sm_sideeffect.c:1166 sctp_endpoint_bh_rcv+0xc38/0xf90 net/sctp/endpointola.c:407 sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88 sctp_rcv+0x3831/0x3b20 net/sctp/input.c:243 sctp4_rcv+0x42/0x50 net/sctp/protocol.c:1159 ip_protocol_deliver_rcu+0xb51/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.62%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.62% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu134 products
  • linux< 3.13.0-211.262 | < 4.4.0-274.308 | < 4.15.0-243.255 | < 5.4.0-208.228 | < 5.15.0-133.144 | < 6.8.0-58.60
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1149.155 | < 4.4.0-1187.202 | < 4.15.0-1186.199 | < 5.4.0-1140.150 | < 5.15.0-1078.85 | < 6.8.0-1027.29
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 67b9a278b80f71ec62091ded97c6bcbea33b5ec3 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9b5d42aeaf1a52f73b003a33da6deef7df34685f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 40b283ba76665437bc2ac72079c51b57b25bff9e | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a758aa6a773bb872196bcc3173171ef8996bddf0 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < bf9bff13225baf5f658577f7d985fc4933d79527 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d3fb3cc83cf313e4f87063ce0f3fea76b071567b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8820d2d6589f62ee5514793fff9b50c9f8101182 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0ead60804b64f5bd6999eec88e503c6a1a242d41 | 2.6.12
  • linux_kernel≥ 2.6.12, < 4.19.324 | ≥ 4.20, < 5.4.286 | ≥ 5.5, < 5.10.230 | ≥ 5.11, < 5.15.172 | ≥ 5.16, < 6.1.117 | ≥ 6.2, < 6.6.61 | ≥ 6.7, < 6.11.8 | 6.12:rc1 | 6.12:rc2 | 6.12:rc3 | 6.12:rc4 | 6.12:rc5 | 6.12:rc6
Debian1 product
  • linux< 6.1.119-1 | < 6.11.9-1

3 vendors · 137 products

References

63 links
Show all 63 references