Vulnerability Details : CVE-2020-29363
An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.
Vulnerability category: OverflowMemory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2020-29363
Probability of exploitation activity in the next 30 days: 0.24%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 62 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-29363
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-29363
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-29363
-
https://www.debian.org/security/2021/dsa-4822
Debian -- Security Information -- DSA-4822-1 p11-kitThird Party Advisory
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Oracle Critical Patch Update Advisory - April 2022Patch;Third Party Advisory
-
https://github.com/p11-glue/p11-kit/releases
Releases · p11-glue/p11-kit · GitHubRelease Notes;Third Party Advisory
-
https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5j67-fw89-fp6x
Out-of-bounds write in p11_rpc_buffer_get_byte_array_value function · Advisory · p11-glue/p11-kit · GitHubThird Party Advisory
Products affected by CVE-2020-29363
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*
- cpe:2.3:a:p11-kit_project:p11-kit:*:*:*:*:*:*:*:*