CVE-2019-20392
Published: 22 January 2020
An invalid memory access flaw is present in libyang before v1.0-r1 in the function resolve_feature_value() when an if-feature statement is used inside a list key node, and the feature used is not defined. Applications that use libyang to parse untrusted input yang files may crash.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libyang Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Needed
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Not vulnerable
(1.0.167-1)
|
|
| jammy |
Not vulnerable
(1.0.167-1)
|
|
| kinetic |
Not vulnerable
(1.0.167-1)
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(1.0.167-1)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://github.com/CESNET/libyang/commit/32fb4993bc8bb49e93e84016af3c10ea53964be5 |
||
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1793922
- https://github.com/CESNET/libyang/commit/32fb4993bc8bb49e93e84016af3c10ea53964be5
- https://github.com/CESNET/libyang/issues/723
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1
- https://www.cve.org/CVERecord?id=CVE-2019-20392
- NVD
- Launchpad
- Debian