UBUNTU-CVE-2023-52616
In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately.
02 / AFFECTED SOFTWARE
Affected packages
7 explicit affected versions
29 explicit affected versions
41 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
16 explicit affected versions
6 explicit affected versions
50 explicit affected versions
36 explicit affected versions
47 explicit affected versions
36 explicit affected versions
7 explicit affected versions
43 explicit affected versions
7 explicit affected versions
44 explicit affected versions
9 explicit affected versions
35 explicit affected versions
3 explicit affected versions
14 explicit affected versions
18 explicit affected versions
5 explicit affected versions
30 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
21 explicit affected versions
9 explicit affected versions
16 explicit affected versions
10 explicit affected versions
7 explicit affected versions
12 explicit affected versions
34 explicit affected versions
12 explicit affected versions
10 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
10 explicit affected versions
37 explicit affected versions
9 explicit affected versions
10 explicit affected versions
23 explicit affected versions
26 explicit affected versions
13 explicit affected versions
4 explicit affected versions
29 explicit affected versions
13 explicit affected versions
47 explicit affected versions
45 explicit affected versions
7 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
12 explicit affected versions
36 explicit affected versions
28 explicit affected versions
44 explicit affected versions
10 explicit affected versions
26 explicit affected versions
1 explicit affected versions
13 explicit affected versions
16 explicit affected versions
47 explicit affected versions
37 explicit affected versions
3 explicit affected versions
2 explicit affected versions
51 explicit affected versions
1 explicit affected versions
12 explicit affected versions
34 explicit affected versions
27 explicit affected versions
20 explicit affected versions
8 explicit affected versions
8 explicit affected versions
5 explicit affected versions
8 explicit affected versions
10 explicit affected versions
9 explicit affected versions
13 explicit affected versions
7 explicit affected versions
39 explicit affected versions
10 explicit affected versions
12 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
33 explicit affected versions
37 explicit affected versions
14 explicit affected versions
38 explicit affected versions
37 explicit affected versions
9 explicit affected versions
36 explicit affected versions
11 explicit affected versions
44 explicit affected versions
8 explicit affected versions
7 explicit affected versions
18 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
42 explicit affected versions
10 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
4 explicit affected versions
7 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/ba3c5574203034781ac4231acf117da917efcd2a
- https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165
- https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6
- https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49
- https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a
- https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a
- https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598
- https://ubuntu.com/security/CVE-2023-52616
- https://ubuntu.com/security/notices/USN-6766-1
- https://ubuntu.com/security/notices/USN-6766-2
- https://ubuntu.com/security/notices/USN-6766-3
- https://ubuntu.com/security/notices/USN-6795-1
- https://ubuntu.com/security/notices/USN-6818-1
- https://ubuntu.com/security/notices/USN-6818-2
- https://ubuntu.com/security/notices/USN-6818-3
- https://ubuntu.com/security/notices/USN-6818-4
- https://ubuntu.com/security/notices/USN-6819-1
- https://ubuntu.com/security/notices/USN-6819-2
- https://ubuntu.com/security/notices/USN-6819-3
- https://ubuntu.com/security/notices/USN-6819-4
- https://ubuntu.com/security/notices/USN-6828-1
- https://www.cve.org/CVERecord?id=CVE-2023-52616