Vulnerability · Published Dec 16, 2020 · Assigned by mitre
CVE-2020-29363
High 7.5
In plain English
A high-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 3.5% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)3.5%top 10.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
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-2020-29363 |
| Alpine:v3.21 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29363 |
| Alpine:v3.22 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29363 |
| Alpine:v3.23 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29363 |
| Alpine:v3.24 | p11-kit | 0.23.22-r0 | ALPINE-CVE-2020-29363 |
| Debian:12 | p11-kit | 0.23.22-1 | DEBIAN-CVE-2020-29363 |
| Debian:13 | p11-kit | 0.23.22-1 | DEBIAN-CVE-2020-29363 |
| Debian:14 | p11-kit | 0.23.22-1 | DEBIAN-CVE-2020-29363 |
| 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
- DSA-4822 vendor-advisory, x_refsource_DEBIAN
- https://www.oracle.com/security-alerts/cpuapr2022.html x_refsource_MISC
- https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5j67-fw89-fp6x x_refsource_MISC
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html