CVE-2023-35788

Aliases:UBUNTU-CVE-2023-35788DEBIAN-CVE-2023-35788
Advisory lineage Upstream: 0 Downstream: 66
Modified
Published: 16 Jun 2023, 00:00
Last modified:18 Sept 2026, 15:02

Vulnerability Summary

Overall Risk (default)
medium
41/100
CVSS Score
7.8 HIGH
v3.1 (cve.org)
EPSS Score
0.53% LOW
1% probability +0.52%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected

Timeline

16 Jun 2023, 00:00
Published
Vulnerability first disclosed
18 Sept 2026, 15:02
Last Modified
Vulnerability information updated

Description

An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.53%• Percentile: 44%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 20.04 | 22.04

  • debian•linux

    < 5.10.191-1 | < 6.1.37-1 | < 6.3.7-1 | < 6.3.7-1

  • ubuntu•linux

    < 5.4.0-153.170 | < 5.15.0-76.83

  • ubuntu•linux-allwinner-5.19

    < 5.19.0-1015.15~22.04.1

  • ubuntu•linux-aws

    < 5.4.0-1105.113 | < 5.15.0-1039.44

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1039.44~20.04.1

  • ubuntu•linux-aws-5.19

    < 5.19.0-1028.29~22.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1105.113~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-fips

    < 5.4.0-1105.113+fips1 | all

  • ubuntu•linux-azure

    all | < 5.4.0-1111.117 | < 5.15.0-1041.48

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1041.48~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1111.117~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1041.48.1

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1111.117+fips1 | all

  • ubuntu•linux-bluefield

    all | < 5.4.0-1066.72 | < 5.15.0-1019.21

  • ubuntu•linux-fips

    < 5.4.0-1080.89 | all

  • ubuntu•linux-gcp

    all | < 5.4.0-1108.117 | < 5.15.0-1037.45

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1037.45~20.04.1

  • ubuntu•linux-gcp-5.19

    < 5.19.0-1027.29~22.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1108.117~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 5.4.0-1108.117+fips1 | all

  • ubuntu•linux-gke

    < 5.4.0-1103.110 | < 5.15.0-1037.42

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    < 5.15.0-1037.42~20.04.1

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1072.76 | < 5.15.0-1023.28

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1023.28~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

Showing first 50 affected entries in server-rendered view.

References (25)