Panic due to malformed WALs in go.etcd.io/etcd
Malformed WALs can be constructed such that WAL.ReadAll can cause attempted out of bounds reads, or creation of arbitrarily sized slices, which may be used as a DoS vector.
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describes (2)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-15112US | medium6.5 | — | ||
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-2020-15106US | medium6.5 | — | ||
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… | ||||
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references
External citations — patches, advisories, analysis.
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