CVE-2018-20615
Published: 31 December 2018
An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
haproxy Launchpad, Ubuntu, Debian |
bionic |
Released
(1.8.8-1ubuntu0.3)
|
| cosmic |
Released
(1.8.13-2ubuntu0.1)
|
|
| trusty |
Does not exist
(trusty was not-affected [code not present])
|
|
| upstream |
Released
(1.8.16-2)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://github.com/haproxy/haproxy/commit/a01f45e3ced23c799f6e78b5efdbd32198a75354 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |