Vulnerability Details : CVE-2020-15112
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.
Vulnerability category: Input validation
Products affected by CVE-2020-15112
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*
- cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-15112
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 35 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15112
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2020-15112
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: security-advisories@github.com (Secondary)
-
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-15112
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
[SECURITY] Fedora 32 Update: etcd-3.4.13-1.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93
An entry with large index causes panic in WAL ReadAll method · Advisory · etcd-io/etcd · GitHubThird Party Advisory
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