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Fencer Vulns
medium 5.5

CVE-2023-1074 json

A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol.

published 2023-03-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23362

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may occur when a user starts a malicious networking service and someone connects to this service. This could allow a local user to starve resources, causing a denial of service.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 6.1.11-1

debian advisories DEBIAN-CVE-2023-1074

  • linux Ubuntu 18.04 LTS 4.15.0-209.220
  • linux Ubuntu 20.04 LTS 5.4.0-147.164
  • linux Ubuntu 22.04 LTS 5.15.0-70.77
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1154.167
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1100.108
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1034.38
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1103.112
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1032.40

ubuntu advisories UBUNTU-CVE-2023-1074

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 8 4.18.0-513.5.1.el8_9
  • perf RHEL 8 4.18.0-513.5.1.el8_9
  • bpftool RHEL 8 4.18.0-513.5.1.el8_9
  • kernel-core RHEL 8 4.18.0-513.5.1.el8_9
  • kernel-tools RHEL 8 4.18.0-513.5.1.el8_9
  • python3-perf RHEL 8 4.18.0-513.5.1.el8_9
  • kernel-modules RHEL 8 4.18.0-513.5.1.el8_9
  • kernel-zfcpdump RHEL 8 4.18.0-513.5.1.el8_9

red hat advisories RHSA-2024:0723RHSA-2024:0725RHSA-2023:7077RHSA-2023:6583RHSA-2024:0930RHSA-2023:6901

  • kernel-syms SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 4.12.14-122.261.1
  • kernel-source SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 4.12.14-122.261.1
  • kernel-default SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS, SLE Live Patching 12 SP5 4.12.14-122.261.1
  • kgraft-patch-SLE12-SP5_Update_69 SLE Live Patching 12 SP5 1-8.3.1

suse advisories SUSE-SU-2025:01983-1

  • kernel AlmaLinux 8 4.18.0-513.5.1.el8_9
  • perf AlmaLinux 8 4.18.0-513.5.1.el8_9
  • bpftool AlmaLinux 8 4.18.0-513.5.1.el8_9
  • kernel-core AlmaLinux 8 4.18.0-513.5.1.el8_9
  • kernel-tools AlmaLinux 8 4.18.0-513.5.1.el8_9
  • python3-perf AlmaLinux 8 4.18.0-513.5.1.el8_9
  • kernel-modules AlmaLinux 8 4.18.0-513.5.1.el8_9
  • kernel-zfcpdump AlmaLinux 8 4.18.0-513.5.1.el8_9

almalinux advisories ALSA-2023:7077

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-1074 updated cvss 5.5

kernel: sctp: fail if no bound addresses can be used for a given scope

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    affected: workaround, no fix planned “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat Virtualization 4 redhat-virtualization-host-image-update
    affected: workaround, no fix planned “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-513.5.1.el8_9, kernel-debuginfo-common-aarch64 4.18.0-513.5.1.el8_9, kernel-debuginfo-common-ppc64le 4.18.0-513.5.1.el8_9
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:7077
  • Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-s390x 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-x86_64 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-aarch64 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-ppc64le 5.14.0-362.8.1.el9_3
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:6583
  • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-debuginfo-common-x86_64 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-aarch64 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-ppc64le 4.18.0-372.93.1.el8_6
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0930
  • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.52.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.52.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.52.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.52.1.el9_2
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0723
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-362.8.1.el9_3, perf 5.14.0-362.8.1.el9_3, rtla 5.14.0-362.8.1.el9_3, kernel-devel-matched 5.14.0-362.8.1.el9_3, kernel-64k-devel-matched 5.14.0-362.8.1.el9_3, kernel-debug-devel-matched 5.14.0-362.8.1.el9_3, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:6583
show 12 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.52.1.el9_2, rtla 5.14.0-284.52.1.el9_2, kernel-devel-matched 5.14.0-284.52.1.el9_2, kernel-64k-devel-matched 5.14.0-284.52.1.el9_2, kernel-debug-devel-matched 5.14.0-284.52.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.52.1.el9_2, +5 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0723
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-513.5.1.el8_9, kernel 4.18.0-513.5.1.el8_9, bpftool 4.18.0-513.5.1.el8_9, kernel-core 4.18.0-513.5.1.el8_9, kernel-tools 4.18.0-513.5.1.el8_9, python3-perf 4.18.0-513.5.1.el8_9, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:7077
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.2.0-362.8.1.el9_3, kernel 5.14.0-362.8.1.el9_3, kernel-64k 5.14.0-362.8.1.el9_3, kernel-core 5.14.0-362.8.1.el9_3, kernel-tools 5.14.0-362.8.1.el9_3, python3-perf 5.14.0-362.8.1.el9_3, +28 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:6583
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) perf 4.18.0-372.93.1.el8_6, kernel 4.18.0-372.93.1.el8_6, bpftool 4.18.0-372.93.1.el8_6, kernel-core 4.18.0-372.93.1.el8_6, kernel-tools 4.18.0-372.93.1.el8_6, python3-perf 4.18.0-372.93.1.el8_6, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0930
  • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.52.1.el9_2, kernel 5.14.0-284.52.1.el9_2, kernel-64k 5.14.0-284.52.1.el9_2, kernel-core 5.14.0-284.52.1.el9_2, kernel-tools 5.14.0-284.52.1.el9_2, python3-perf 5.14.0-284.52.1.el9_2, +28 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0723
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-modules 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-core 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-modules 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-modules-extra 4.18.0-513.5.1.rt7.307.el8_9, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:6901
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-362.8.1.el9_3, kernel-rt-core 5.14.0-362.8.1.el9_3, kernel-rt-modules 5.14.0-362.8.1.el9_3, kernel-rt-debug-core 5.14.0-362.8.1.el9_3, kernel-rt-modules-core 5.14.0-362.8.1.el9_3, kernel-rt-debug-modules 5.14.0-362.8.1.el9_3, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:6583
  • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-core 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-modules 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-debug-core 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-modules-core 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-debug-modules 5.14.0-284.52.1.rt14.337.el9_2, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0725
  • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-kvm 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-modules 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-kvm 4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-core 4.18.0-513.5.1.rt7.307.el8_9, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:6901
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-362.8.1.el9_3, kernel-rt-kvm 5.14.0-362.8.1.el9_3, kernel-rt-core 5.14.0-362.8.1.el9_3, kernel-rt-modules 5.14.0-362.8.1.el9_3, kernel-rt-debug-kvm 5.14.0-362.8.1.el9_3, kernel-rt-debug-core 5.14.0-362.8.1.el9_3, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:6583
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-kvm 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-core 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-modules 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-debug-kvm 5.14.0-284.52.1.rt14.337.el9_2, kernel-rt-debug-core 5.14.0-284.52.1.rt14.337.el9_2, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0725
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 perf 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-x86_64 4.18.0-372.93.1.el8_6
    fixed: vendor fix “To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0930

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-044-09 updated cvss 5.5

Siemens SCALANCE W700 IEEE 802.11ax

  • Siemens SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) <V3.0.0 Siemens SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) <V3.0.0 Siemens SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) <V3.0.0 Siemens SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) <V3.0.0 Siemens SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) <V3.0.0
    +13 more products
    Siemens SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) <V3.0.0 Siemens SCALANCE WUB762-1 (6GK5762-1AJ00-1AA0) <V3.0.0 Siemens SCALANCE WUB762-1 iFeatures (6GK5762-1AJ00-2AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3AB0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3DB0) <V3.0.0 Siemens SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) <V3.0.0 Siemens SCALANCE WUM766-1 (ME) (6GK5766-1GE00-3DC0) <V3.0.0 Siemens SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) <V3.0.0
    affected: fixed in V3.0.0 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • n/a kernel

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.