CVE-2023-35788

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory debian.org Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.openwall.com/lists/oss-security/2023/06/07/1 exploit mailing list
https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825c patch
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7 patch mailing list
http://www.openwall.com/lists/oss-security/2023/06/17/1 exploit mailing list
https://www.debian.org/security/2023/dsa-5448 third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20230714-0002/ third party advisory
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html third party advisory mailing list
https://www.debian.org/security/2023/dsa-5480 third party advisory vendor advisory
http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2023-35788?
CVE-2023-35788 has been scored as a high severity vulnerability.
How to fix CVE-2023-35788?
To fix CVE-2023-35788, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-35788 being actively exploited in the wild?
It is possible that CVE-2023-35788 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.