CVE-2019-18224

Current Description

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.

Basic Data

PublishedOctober 21, 2019
Last ModifiedOctober 29, 2019
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-787
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactPARTIAL
CVSS 2 - Availability ImpactPARTIAL
CVSS 2 - Base Score7.5
SeverityHIGH
Exploitability Score10.0
Impact Score6.4
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationGnuLibidn2********2.1.1

Vulnerable Software List

VendorProductVersions
Gnu Libidn2 *

References

NameSourceURLTags
openSUSE-SU-2019:2613http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00008.htmlSUSE
openSUSE-SU-2019:2611http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00009.htmlSUSE
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12420https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12420MISCExploit Issue Tracking Third Party Advisory
https://github.com/libidn/libidn2/commit/e4d1558aa2c1c04a05066ee8600f37603890ba8chttps://github.com/libidn/libidn2/commit/e4d1558aa2c1c04a05066ee8600f37603890ba8cMISCPatch Third Party Advisory
https://github.com/libidn/libidn2/compare/libidn2-2.1.0...libidn2-2.1.1https://github.com/libidn/libidn2/compare/libidn2-2.1.0...libidn2-2.1.1MISCRelease Notes Third Party Advisory
FEDORA-2019-a8d35fcf7chttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDQVQFEDORA
FEDORA-2019-d3221d69e0https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MINU5FEDORA
20200203 [SECURITY] [DSA 4613-1] libidn2 security updatehttps://seclists.org/bugtraq/2020/Feb/4BUGTRAQ
GLSA-202003-63https://security.gentoo.org/glsa/202003-63GENTOO
USN-4168-1https://usn.ubuntu.com/4168-1/UBUNTU
DSA-4613https://www.debian.org/security/2020/dsa-4613DEBIAN