Out-of-bounds Write Affecting libidn2 package, versions <2.0.5-1+deb10u1
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
2.09% (89th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN10-LIBIDN2-474091
- published 22 Oct 2019
- disclosed 21 Oct 2019
Introduced: 21 Oct 2019
CVE-2019-18224 Open this link in a new tabHow to fix?
Upgrade Debian:10
libidn2
to version 2.0.5-1+deb10u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libidn2
package and not the libidn2
package as distributed by Debian
.
See How to fix?
for Debian:10
relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2019-18224
- https://seclists.org/bugtraq/2020/Feb/4
- https://www.debian.org/security/2020/dsa-4613
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDQVQ2XPV5BTZUFINT7AFJSKNNBVURNJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MINU5RKDFE6TKAFY5DRFN3WSFDS4DYVS/
- https://security.gentoo.org/glsa/202003-63
- https://github.com/libidn/libidn2/commit/e4d1558aa2c1c04a05066ee8600f37603890ba8c
- https://github.com/libidn/libidn2/compare/libidn2-2.1.0...libidn2-2.1.1
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12420
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00009.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-18224
- https://usn.ubuntu.com/4168-1/
- 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/