CVE-2020-12460
Published: 27 July 2020
OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte overwrites the heap metadata of the next chunk and its PREV_INUSE flag.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
opendmarc Launchpad, Ubuntu, Debian |
hirsute |
Not vulnerable
(1.4.0~beta1+dfsg-3)
|
| upstream |
Released
(1.4.0~beta1+dfsg-3)
|
|
| trusty |
Does not exist
|
|
| bionic |
Released
(1.3.2-3ubuntu0.2)
|
|
| focal |
Released
(1.3.2-7ubuntu0.1)
|
|
| xenial |
Released
(1.3.1+dfsg-3ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
| groovy |
Ignored
(end of life)
|
|
| impish |
Not vulnerable
(1.4.0~beta1+dfsg-3)
|
|
| jammy |
Not vulnerable
(1.4.0~beta1+dfsg-3)
|
|
| kinetic |
Not vulnerable
(1.4.0~beta1+dfsg-3)
|
|
| lunar |
Not vulnerable
(1.4.0~beta1+dfsg-3)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |