CVE-2019-10050
Published: 13 May 2019
A buffer over-read issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the decode-mpls.c function DecodeMPLS is composed only of a packet of source address and destination address plus the correct type field and the right number for shim, an attacker can manipulate the control flow, such that the condition to leave the loop is true. After leaving the loop, the network packet has a length of 2 bytes. There is no validation of this length. Later on, the code tries to read at an empty position, leading to a crash.
Priority
Status
Package | Release | Status |
---|---|---|
suricata Launchpad, Ubuntu, Debian |
bionic |
Needed
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
upstream |
Released
(1:4.1.4-1)
|
|
impish |
Does not exist
|
|
groovy |
Does not exist
|
|
jammy |
Not vulnerable
(1:4.1.4-1)
|
|
lunar |
Not vulnerable
(1:4.1.4-1)
|
|
focal |
Does not exist
|
|
hirsute |
Does not exist
|
|
kinetic |
Not vulnerable
(1:4.1.4-1)
|
|
xenial |
Needed
|
|
mantic |
Not vulnerable
(1:4.1.4-1)
|
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |