Vulnerability Report

CVE-2023-35788

Title: Out-of-bounds write in Linux kernel flower classifier

DoS/EoP

Proof Of Concept

PoC Available for CVE-2023-35788

CWE Category CWE-787
Published Date Jun 16, 2023
Modified Date May 05, 2025
Exploit Status Available
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
0.53%

Vulnerability Summary

CVE-2023-35788: 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.

Impacted Vendors

N
netapp 5
S
sercomm 1

Reference Links

http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html http://www.openwall.com/lists/oss-security/2023/06/17/1 https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7 https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825c https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html https://security.netapp.com/advisory/ntap-20230714-0002/ https://www.debian.org/security/2023/dsa-5448 https://www.debian.org/security/2023/dsa-5480 https://www.openwall.com/lists/oss-security/2023/06/07/1 http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html http://www.openwall.com/lists/oss-security/2023/06/17/1 https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7 https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825c https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html https://security.netapp.com/advisory/ntap-20230714-0002/ https://www.debian.org/security/2023/dsa-5448 https://www.debian.org/security/2023/dsa-5480 https://www.openwall.com/lists/oss-security/2023/06/07/1
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-35788 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/lanleft/cve-2023-35788
View Code
MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.