CVE-2019-18224
Published: 21 October 2019
idn2_to_ascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long domain string.
Priority
Status
Package | Release | Status |
---|---|---|
libidn2 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.0.4-1.1ubuntu0.2)
|
disco |
Released
(2.0.5-1ubuntu0.3)
|
|
eoan |
Not vulnerable
|
|
focal |
Not vulnerable
|
|
groovy |
Not vulnerable
|
|
hirsute |
Not vulnerable
|
|
impish |
Not vulnerable
|
|
jammy |
Not vulnerable
|
|
kinetic |
Not vulnerable
|
|
lunar |
Not vulnerable
|
|
mantic |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
libidn2-0 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
mantic |
Does not exist
|
|
trusty |
Needed
|
|
upstream |
Needs triage
|
|
xenial |
Needed
|
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 |
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12420
- https://github.com/libidn/libidn2/commit/e4d1558aa2c1c04a05066ee8600f37603890ba8c
- https://github.com/libidn/libidn2/compare/libidn2-2.1.0...libidn2-2.1.1
- https://ubuntu.com/security/notices/USN-4168-1
- https://www.cve.org/CVERecord?id=CVE-2019-18224
- NVD
- Launchpad
- Debian