CVE-2018-17974
Published: 3 October 2018
An issue was discovered in Tcpreplay 4.3.0 beta1. A heap-based buffer over-read was triggered in the function dlt_en10mb_encode() of the file plugins/dlt_en10mb/en10mb.c, due to inappropriate values in the function memmove(). The length (pktlen + ctx -> l2len) can be larger than source value (packet + ctx->l2len) because the function fails to ensure the length of a packet is valid. This leads to Denial of Service.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
tcpreplay Launchpad, Ubuntu, Debian |
bionic |
Released
(4.2.6-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
| cosmic |
Ignored
(end of life)
|
|
| disco |
Not vulnerable
(4.3.1-2)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Not vulnerable
(4.3.2-1build1)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Not vulnerable
(4.3.3-2)
|
|
| impish |
Not vulnerable
(4.3.3-2)
|
|
| jammy |
Not vulnerable
(4.3.4-1)
|
|
| kinetic |
Not vulnerable
(4.3.4-1)
|
|
| lunar |
Not vulnerable
(4.4.1-2ubuntu1)
|
|
| trusty |
Does not exist
(trusty was needed)
|
|
| upstream |
Released
(4.3.0)
|
|
| xenial |
Released
(3.4.4-2+deb8u1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
|
Patches: upstream: https://github.com/appneta/tcpreplay/pull/492/commits/9062a91125065314877e03fc1e6ebbea7fc01ee8 upstream: https://github.com/appneta/tcpreplay/pull/492/commits/af0398766558a868dca232238f5df9eb151de304 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |