CVE-2020-15112

Improper Input Validation in etcd

Description

In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.

Categories

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory fedoraproject.org
Affected: etcd-io etcd
Published at:
Updated at:

References

Link Tags
https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93 third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15112?
CVE-2020-15112 has been scored as a medium severity vulnerability.
How to fix CVE-2020-15112?
To fix CVE-2020-15112, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15112 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-15112 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15112?
CVE-2020-15112 affects etcd-io etcd.
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