UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
15 explicit affected versions
23 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
32 explicit affected versions
18 explicit affected versions
40 explicit affected versions
29 explicit affected versions
18 explicit affected versions
25 explicit affected versions
7 explicit affected versions
26 explicit affected versions
66 explicit affected versions
35 explicit affected versions
5 explicit affected versions
15 explicit affected versions
12 explicit affected versions
68 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
23 explicit affected versions
7 explicit affected versions
12 explicit affected versions
16 explicit affected versions
12 explicit affected versions
7 explicit affected versions
58 explicit affected versions
12 explicit affected versions
71 explicit affected versions
79 explicit affected versions
12 explicit affected versions
68 explicit affected versions
1 explicit affected versions
10 explicit affected versions
37 explicit affected versions
10 explicit affected versions
6 explicit affected versions
1 explicit affected versions
10 explicit affected versions
26 explicit affected versions
13 explicit affected versions
1 explicit affected versions
29 explicit affected versions
60 explicit affected versions
13 explicit affected versions
29 explicit affected versions
55 explicit affected versions
28 explicit affected versions
71 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
70 explicit affected versions
18 explicit affected versions
10 explicit affected versions
26 explicit affected versions
10 explicit affected versions
24 explicit affected versions
5 explicit affected versions
13 explicit affected versions
30 explicit affected versions
13 explicit affected versions
29 explicit affected versions
19 explicit affected versions
3 explicit affected versions
1 explicit affected versions
37 explicit affected versions
48 explicit affected versions
12 explicit affected versions
17 explicit affected versions
9 explicit affected versions
4 explicit affected versions
1 explicit affected versions
6 explicit affected versions
5 explicit affected versions
7 explicit affected versions
1 explicit affected versions
59 explicit affected versions
13 explicit affected versions
25 explicit affected versions
6 explicit affected versions
21 explicit affected versions
10 explicit affected versions
4 explicit affected versions
12 explicit affected versions
58 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
26 explicit affected versions
15 explicit affected versions
37 explicit affected versions
38 explicit affected versions
19 explicit affected versions
9 explicit affected versions
19 explicit affected versions
9 explicit affected versions
26 explicit affected versions
7 explicit affected versions
32 explicit affected versions
4 explicit affected versions
1 explicit affected versions
24 explicit affected versions
43 explicit affected versions
25 explicit affected versions
8 explicit affected versions
7 explicit affected versions
14 explicit affected versions
59 explicit affected versions
4 explicit affected versions
48 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- 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://ubuntu.com/security/CVE-2023-35788
- https://ubuntu.com/security/notices/USN-6192-1
- https://ubuntu.com/security/notices/USN-6193-1
- https://ubuntu.com/security/notices/USN-6194-1
- https://ubuntu.com/security/notices/USN-6205-1
- https://ubuntu.com/security/notices/USN-6206-1
- https://ubuntu.com/security/notices/USN-6212-1
- https://ubuntu.com/security/notices/USN-6220-1
- https://ubuntu.com/security/notices/USN-6223-1
- https://ubuntu.com/security/notices/USN-6234-1
- https://ubuntu.com/security/notices/USN-6235-1
- https://ubuntu.com/security/notices/USN-6256-1
- https://www.cve.org/CVERecord?id=CVE-2023-35788
- https://www.openwall.com/lists/oss-security/2023/06/07/1
- https://www.openwall.com/lists/oss-security/2023/06/12/1