GHSA-p4g4-wgrh-qrg2

ghsaUSosv

Panic due to malformed WALs in go.etcd.io/etcd

view advisory published 2023-02-07Licence: CC-BY-4.0

### Vulnerability type Data Validation ### Detail The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL. ### Specific Go Packages Affected github.com/etcd-io/etcd/wal ### References Find out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf) ### For more information If you have any questions or comments about this advisory: * Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/master/security/security-release-process.md#product-security-committee-psc)

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describes (2)

Related CVEs.

IDseverity exploitable
CVE-2020-15112USmedium6.5—
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 whe…
CVE-2020-15106USmedium6.5—
In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional val…
02

references

External citations — patches, advisories, analysis.

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