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The stringprep_utf8_to_ucs4 function in libin before 1.31, as used in jabberd2, allows context-dependent attackers to read system memory and possibly have other unspecified impact via invalid UTF-8 characters in a string, which triggers an out-of-bounds read.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade libidn | Sep 20, 2017 | Aug 12, 2015 |
| Debian | — | Upgrade libidn | May 14, 2016 | Aug 12, 2015 |
| Freebsd | — | Upgrade libidn | Dec 10, 2025 | Jul 23, 2015 |
| Oracle Solaris | — | Upgrade entire/ to version 11.4-11.4.0.0.1.15.0 on Solaris 11.4 | Oct 19, 2018 | Aug 12, 2015 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 23, 2015 |
| Suse | — | Upgrade sles12sp1-docker-imageUpgrade libidn-develUpgrade libidn11-32bitUpgrade libidn2-develUpgrade libidn11Upgrade sles12-docker-imageUpgrade libidn-32bitUpgrade libidn2-0Upgrade libidn-toolsUpgrade wgetUpgrade libidnUpgrade libidn-x86Upgrade libidn2-0-32bit | Dec 18, 2015 | Aug 12, 2015 |
| Ubuntu | — | Upgrade libidn11 | Aug 24, 2016 | Aug 12, 2015 |
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