CVE-2019-18224

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 84%
Affected Products (NVD)
VendorProductVersion
gnulibidn2
𝑥
< 2.1.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libidn2
bookworm
2.3.3-1
fixed
bullseye
2.3.0-5
fixed
sid
2.3.7-2
fixed
trixie
2.3.7-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libidn2
bionic
Fixed 2.0.4-1.1ubuntu0.2
released
disco
Fixed 2.0.5-1ubuntu0.3
released
eoan
not-affected
focal
not-affected
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
dne
libidn2-0
bionic
dne
disco
dne
eoan
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
kinetic
dne
lunar
dne
mantic
dne
noble
dne
trusty
needed
xenial
needed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libidn2-0
suse enterprise desktop 15
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP1
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP2
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP3
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP4
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP5
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP6
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP7
2.2.0-3.3.1
fixed
suse enterprise sap 15
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP1
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP2
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP3
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP4
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP5
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP6
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP7
2.2.0-3.3.1
fixed
suse enterprise server 15
2.2.0-3.3.1
fixed
suse enterprise server 15 SP1
2.2.0-3.3.1
fixed
suse enterprise server 15 SP2
2.2.0-3.3.1
fixed
suse enterprise server 15 SP3
2.2.0-3.3.1
fixed
suse enterprise server 15 SP4
2.2.0-3.3.1
fixed
suse enterprise server 15 SP5
2.2.0-3.3.1
fixed
suse enterprise server 15 SP6
2.2.0-3.3.1
fixed
suse enterprise server 15 SP7
2.2.0-3.3.1
fixed
libidn2-0-32bit
suse enterprise desktop 15
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP1
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP2
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP3
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP4
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP5
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP6
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP7
2.2.0-3.3.1
fixed
suse enterprise sap 15
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP1
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP2
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP3
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP4
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP5
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP6
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP7
2.2.0-3.3.1
fixed
suse enterprise server 15
2.2.0-3.3.1
fixed
suse enterprise server 15 SP1
2.2.0-3.3.1
fixed
suse enterprise server 15 SP2
2.2.0-3.3.1
fixed
suse enterprise server 15 SP3
2.2.0-3.3.1
fixed
suse enterprise server 15 SP4
2.2.0-3.3.1
fixed
suse enterprise server 15 SP5
2.2.0-3.3.1
fixed
suse enterprise server 15 SP6
2.2.0-3.3.1
fixed
suse enterprise server 15 SP7
2.2.0-3.3.1
fixed
libidn2-devel
suse enterprise desktop 15
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP1
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP2
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP3
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP4
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP5
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP6
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP7
2.2.0-3.3.1
fixed
suse enterprise sap 15
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP1
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP2
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP3
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP4
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP5
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP6
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP7
2.2.0-3.3.1
fixed
suse enterprise server 15
2.2.0-3.3.1
fixed
suse enterprise server 15 SP1
2.2.0-3.3.1
fixed
suse enterprise server 15 SP2
2.2.0-3.3.1
fixed
suse enterprise server 15 SP3
2.2.0-3.3.1
fixed
suse enterprise server 15 SP4
2.2.0-3.3.1
fixed
suse enterprise server 15 SP5
2.2.0-3.3.1
fixed
suse enterprise server 15 SP6
2.2.0-3.3.1
fixed
suse enterprise server 15 SP7
2.2.0-3.3.1
fixed
libidn2-tools
suse enterprise desktop 15 SP4
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP5
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP6
2.2.0-3.3.1
fixed
suse enterprise desktop 15 SP7
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP4
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP5
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP6
2.2.0-3.3.1
fixed
suse enterprise sap 15 SP7
2.2.0-3.3.1
fixed
suse enterprise server 15 SP4
2.2.0-3.3.1
fixed
suse enterprise server 15 SP5
2.2.0-3.3.1
fixed
suse enterprise server 15 SP6
2.2.0-3.3.1
fixed
suse enterprise server 15 SP7
2.2.0-3.3.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
idn2
RHEL 8
0:2.2.0-1.el8
fixed
libidn2
RHEL 8
0:2.2.0-1.el8
fixed
libidn2-devel
RHEL 8
0:2.2.0-1.el8
fixed
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00009.html
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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDQVQ2XPV5BTZUFINT7AFJSKNNBVURNJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MINU5RKDFE6TKAFY5DRFN3WSFDS4DYVS/
https://seclists.org/bugtraq/2020/Feb/4
https://security.gentoo.org/glsa/202003-63
https://usn.ubuntu.com/4168-1/
https://www.debian.org/security/2020/dsa-4613
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00009.html
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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDQVQ2XPV5BTZUFINT7AFJSKNNBVURNJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MINU5RKDFE6TKAFY5DRFN3WSFDS4DYVS/
https://seclists.org/bugtraq/2020/Feb/4
https://security.gentoo.org/glsa/202003-63
https://usn.ubuntu.com/4168-1/
https://www.debian.org/security/2020/dsa-4613