Out-of-bounds Read in P11-Kit Project
CVE-2020-29362
An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.023 (82.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.023 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/p11-glue/p11-kit/releases (Third Party Advisory, Release Notes)
- github.com/p11-glue/p11-kit/security/advisories/GHSA-5wpq-43j2-6qwc (Third Party Advisory)
- www.debian.org/security/2021/dsa-4822 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/01/msg00002.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-29362?
- CVE-2020-29362 is a medium-severity vulnerability in P11-Kit Project, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2020-12-16.
- How severe is CVE-2020-29362?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-29362 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.