CVE-2017-16227
Published: 29 October 2017
The aspath_put function in bgpd/bgp_aspath.c in Quagga before 1.2.2 allows remote attackers to cause a denial of service (session drop) via BGP UPDATE messages, because AS_PATH size calculation for long paths counts certain bytes twice and consequently constructs an invalid message.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
quagga Launchpad, Ubuntu, Debian |
artful |
Released
(1.1.1-3ubuntu0.1)
|
| trusty |
Released
(0.99.22.4-3ubuntu1.4)
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.99.24.1-2ubuntu1.3)
|
|
| zesty |
Released
(1.1.1-1ubuntu0.1)
|
|
|
Patches: upstream: https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008 |
||
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 |