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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.htmlThird Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2023/06/17/1Exploit, Mailing List
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7Mailing List, Patch
- https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825cPatch
- https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230714-0002/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5448Third Party Advisory
- https://www.debian.org/security/2023/dsa-5480Third Party Advisory
- https://www.openwall.com/lists/oss-security/2023/06/07/1Exploit, Mailing List
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.htmlThird Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2023/06/17/1Exploit, Mailing List
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7Mailing List, Patch
- https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825cPatch
- https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230714-0002/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5448Third Party Advisory
- https://www.debian.org/security/2023/dsa-5480Third Party Advisory
- https://www.openwall.com/lists/oss-security/2023/06/07/1Exploit, Mailing List
Timeline
- Published
- Jun 16, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified