CVE-2020-15112
Published: 5 August 2020
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
etcd Launchpad, Ubuntu, Debian |
bionic |
Released
(3.2.17+dfsg-1ubuntu0.1+esm1)
|
| focal |
Released
(3.2.26+dfsg-6ubuntu0.1)
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Ignored
(reached end-of-life)
|
|
| jammy |
Needed
|
|
| kinetic |
Needed
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(3.3.23, 3.4.10)
|
|
| xenial |
Needed
|
|
|
Patches: upstream: https://github.com/etcd-io/etcd/pull/12638/commits/b14255c0b4d1a27221d1857ae0e72bcac7f2b146 (3.3.23) |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |