CVE-2019-14513
Published: 1 August 2019
Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server to send large DNS packets that result in a read operation beyond the buffer allocated for the packet, a different vulnerability than CVE-2017-14491.
Notes
| Author | Note |
|---|---|
| msalvatore | The vulnerability writeup states, "The git commit affected is this one and before: 15379ea1f252d1f53c5d93ae970b22dedb233642". This commit, therefore, may resolve the issue: http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=patch;h=d3a8b39c7df2f0debf3b5f274a1c37a9e261f94e |
| mdeslaur | can't reproduce on xenial, probably not a DoS issue |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
dnsmasq Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(2.79-1)
|
| disco |
Not vulnerable
|
|
| eoan |
Not vulnerable
|
|
| focal |
Not vulnerable
|
|
| trusty |
Needed
|
|
| upstream |
Released
(2.76-1)
|
|
| impish |
Not vulnerable
|
|
| hirsute |
Not vulnerable
|
|
| xenial |
Released
(2.75-1ubuntu0.16.04.10)
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Not vulnerable
|
|
| groovy |
Not vulnerable
|
|
| lunar |
Not vulnerable
|
|
| mantic |
Not vulnerable
|
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 |