CVE-2016-6261
7.5
HIGH
CVSS 3.1
EPSS 2.7%
Description
The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via 64 bytes of input.
How to fix CVE-2016-6261
To remediate CVE-2016-6261, upgrade the affected package to a fixed version below.
- Alpine/libidn—upgrade to 1.33-r0 or later
- Debian/libidn—upgrade to 1.33-1 or later
Is CVE-2016-6261 being exploited?
Low — EPSS is 2.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.33-r0
- from 0, < 1.33-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |