Vulnerability Details : CVE-2019-18224
Potential exploit
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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2019-18224
- cpe:2.3:a:gnu:libidn2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-18224
0.97%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-18224
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-18224
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-18224
-
https://www.debian.org/security/2020/dsa-4613
Debian -- Security Information -- DSA-4613-1 libidn2
-
https://usn.ubuntu.com/4168-1/
USN-4168-1: Libidn2 vulnerabilities | Ubuntu security notices
-
https://github.com/libidn/libidn2/commit/e4d1558aa2c1c04a05066ee8600f37603890ba8c
idn2_to_ascii_4i(): Restrict output length to 63 · libidn/libidn2@e4d1558 · GitHubPatch;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00008.html
[security-announce] openSUSE-SU-2019:2613-1: moderate: Security update f
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDQVQ2XPV5BTZUFINT7AFJSKNNBVURNJ/
[SECURITY] Fedora 29 Update: mingw-libidn2-2.2.0-1.fc29 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MINU5RKDFE6TKAFY5DRFN3WSFDS4DYVS/
[SECURITY] Fedora 30 Update: mingw-libidn2-2.2.0-1.fc30 - package-announce - Fedora Mailing-Lists
-
https://security.gentoo.org/glsa/202003-63
GNU IDN Library 2: Multiple vulnerabilities (GLSA 202003-63) — Gentoo security
-
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12420
12420 - libidn2/libidn2_to_ascii_8z_fuzzer: Heap-buffer-overflow in idn2_to_ascii_4i - oss-fuzz - OSS-Fuzz: Fuzzing the planet - MonorailExploit;Issue Tracking;Third Party Advisory
-
https://seclists.org/bugtraq/2020/Feb/4
Bugtraq: [SECURITY] [DSA 4613-1] libidn2 security update
-
https://github.com/libidn/libidn2/compare/libidn2-2.1.0...libidn2-2.1.1
Comparing libidn2-2.1.0...libidn2-2.1.1 · libidn/libidn2 · GitHubRelease Notes;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00009.html
[security-announce] openSUSE-SU-2019:2611-1: moderate: Security update f
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