UBUNTU-CVE-2021-22600
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
13 explicit affected versions
76 explicit affected versions
39 explicit affected versions
56 explicit affected versions
29 explicit affected versions
9 explicit affected versions
88 explicit affected versions
3 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
21 explicit affected versions
6 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
43 explicit affected versions
3 explicit affected versions
51 explicit affected versions
12 explicit affected versions
42 explicit affected versions
31 explicit affected versions
24 explicit affected versions
54 explicit affected versions
1 explicit affected versions
26 explicit affected versions
3 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
70 explicit affected versions
44 explicit affected versions
33 explicit affected versions
10 explicit affected versions
55 explicit affected versions
11 explicit affected versions
12 explicit affected versions
78 explicit affected versions
7 explicit affected versions
42 explicit affected versions
74 explicit affected versions
39 explicit affected versions
1 explicit affected versions
10 explicit affected versions
19 explicit affected versions
32 explicit affected versions
3 explicit affected versions
1 explicit affected versions
36 explicit affected versions
5 explicit affected versions
33 explicit affected versions
1 explicit affected versions
32 explicit affected versions
13 explicit affected versions
1 explicit affected versions
32 explicit affected versions
10 explicit affected versions
3 explicit affected versions
29 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
26 explicit affected versions
38 explicit affected versions
9 explicit affected versions
32 explicit affected versions
12 explicit affected versions
86 explicit affected versions
63 explicit affected versions
4 explicit affected versions
20 explicit affected versions
54 explicit affected versions
32 explicit affected versions
43 explicit affected versions
1 explicit affected versions
103 explicit affected versions
33 explicit affected versions
4 explicit affected versions
21 explicit affected versions
1 explicit affected versions
10 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
- https://ubuntu.com/security/CVE-2021-22600
- https://ubuntu.com/security/notices/USN-5266-1
- https://ubuntu.com/security/notices/USN-5278-1
- https://ubuntu.com/security/notices/USN-5294-1
- https://ubuntu.com/security/notices/USN-5294-2
- https://ubuntu.com/security/notices/USN-5295-1
- https://ubuntu.com/security/notices/USN-5295-2
- https://ubuntu.com/security/notices/USN-5298-1
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- https://www.cve.org/CVERecord?id=CVE-2021-22600