CVE-2020-29363: Buffer Overflow
First published: Wed Dec 16 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/p11-kit | 0.23.15-2+deb10u1 0.23.22-1 0.24.1-2 0.25.0-5 | |
| IBM Cloud Pak for Security (CP4S) | >=0.23.6<0.23.22 | |
| Debian Debian Linux | =10.0 | |
| Oracle Communications Cloud Native Core Policy | =1.14.0 | |
| IBM Cloud Pak for Security (CP4S) | <=1.7.2.0 | |
| IBM Cloud Pak for Security (CP4S) | <=1.7.1.0 | |
| IBM Cloud Pak for Security (CP4S) | <=1.7.0.0 |
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Reference Links
- https://lists.freedesktop.org/archives/p11-glue/2020-December/000712.html
- https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5j67-fw89-fp6x
- https://github.com/p11-glue/p11-kit/commit/2617f3ef888e103324a28811886b99ed0a56346d
- https://github.com/p11-glue/p11-kit/commit/ba49b85ecf280e7fb6eec96c3ef33c50122e75a6
- https://security-tracker.debian.org/tracker/CVE-2020-29363
- https://github.com/p11-glue/p11-kit/releases
- https://www.debian.org/security/2021/dsa-4822
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/193534
- https://www.ibm.com/support/pages/node/6493729 (Advisory)
Frequently Asked Questions
What is CVE-2020-29363?
CVE-2020-29363 is a vulnerability in p11-glue p11-kit that can lead to a denial of service caused by a heap-based buffer overflow.
How does CVE-2020-29363 affect p11-kit?
CVE-2020-29363 affects p11-kit versions 0.23.6 through 0.23.21 and can be exploited through the RPC protocol used by p11-kit server/remote commands and the client library.
What is the severity of CVE-2020-29363?
CVE-2020-29363 has a severity rating of 7.5 (High).
Which software versions are affected by CVE-2020-29363?
CVE-2020-29363 affects p11-kit versions 0.23.6 through 0.23.21, and Cloud Pak for Security (CP4S) versions up to and including 1.7.2.0.
How can I fix CVE-2020-29363?
To fix CVE-2020-29363, update p11-kit to versions 0.23.22 or later, or the affected software to a version that includes the necessary security patches.
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