CVE-2023-35788

HIGH

Linux Kernel < 6.3.7 - Out-of-bounds Write in Flower Classifier via TCA_FLOWER_KEY_ENC_OPTS_GENEVE

Title source: llm
STIX 2.1

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.

References (10)

Core 10
Core References
Exploit, Mailing List mailing-list
http://www.openwall.com/lists/oss-security/2023/06/17/1
Third Party Advisory vendor-advisory
https://www.debian.org/security/2023/dsa-5448
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
Third Party Advisory vendor-advisory
https://www.debian.org/security/2023/dsa-5480
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 1.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-787
Status published
Products (14)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
canonical/ubuntu_linux 22.04
debian/debian_linux 12.0
debian/debian_linux 10.0
debian/debian_linux 11.0
linux/linux_kernel 4.19 - 4.19.285
netapp/h300s_firmware
... and 4 more
Published Jun 16, 2023
Tracked Since Feb 18, 2026