Vulnerability · Published Dec 16, 2020 · Assigned by mitre
CVE-2020-29362
Medium 5.3
In plain English
A medium-severity security flaw in the p11-kit package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | p11-kit | 0.23.22-1.el8 | ALSA-2021:1609 |
| AlmaLinux:8 | p11-kit-devel | 0.23.22-1.el8 | ALSA-2021:1609 |
| AlmaLinux:8 | p11-kit-server | 0.23.22-1.el8 | ALSA-2021:1609 |
| AlmaLinux:8 | p11-kit-trust | 0.23.22-1.el8 | ALSA-2021:1609 |
| Alpine:v3.20 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29362 |
| Alpine:v3.21 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29362 |
| Alpine:v3.22 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29362 |
| Alpine:v3.23 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29362 |
| Alpine:v3.24 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29362 |
| Debian:12 | p11-kit | 0.23.22-1 | DEBIAN-CVE-2020-29362 |
| Debian:13 | p11-kit | 0.23.22-1 | DEBIAN-CVE-2020-29362 |
| Debian:14 | p11-kit | 0.23.22-1 | DEBIAN-CVE-2020-29362 |
| Rocky Linux:8 | p11-kit | 0:0.23.22-1.el8 | RLSA-2021:1609 |
Affected products (as reported)
References
- https://github.com/p11-glue/p11-kit/releases x_refsource_MISC
- https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5wpq-43j2-6qwc x_refsource_MISC
- DSA-4822 vendor-advisory, x_refsource_DEBIAN
- [debian-lts-announce] 20210104 [SECURITY] [DLA 2513-1] p11-kit security update mailing-list, x_refsource_MLIST
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html