CVE-2018-20712
Published: 15 January 2019
A heap-based buffer over-read exists in the function d_expression_1 in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils 2.31.1. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by c++filt.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libiberty Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(20170913-1ubuntu0.1)
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Not vulnerable
(20200409-1)
|
|
| groovy |
Not vulnerable
(20200409-1)
|
|
| hirsute |
Not vulnerable
(20210106-1)
|
|
| impish |
Not vulnerable
(20210106-1)
|
|
| jammy |
Not vulnerable
(20210106-1)
|
|
| kinetic |
Not vulnerable
(20210106-1)
|
|
| lunar |
Not vulnerable
(20210106-1)
|
|
| mantic |
Not vulnerable
(20210106-1)
|
|
| trusty |
Does not exist
(trusty was deferred [2020-03-09])
|
|
| upstream |
Needs triage
|
|
| xenial |
Deferred
(2020-03-09)
|
|
|
Patches: upstream: https://github.com/gcc-mirror/gcc/commit/956bea2cd6110f104f12d5861143efc71213c140 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |