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Vulnerability record · CVE-2015-2059 · published 12 August 2015

CVE-2015-2059: Gnu libidn memory buffer overflow vulnerability

Gnu · Libidn

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.

7.5 CVSS 2.0 High EPSS 3.2% · top 12.4% CWE-119 · Memory buffer overflow
7.5CVSS 2.0 base score
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=2e97c279 Issue TrackingPatch
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162537.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162549.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-07/msg00042.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html
http://www.debian.org/security/2016/dsa-3578
http://www.openwall.com/lists/oss-security/2015/02/23/25 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/72736
http://www.ubuntu.com/usn/USN-3068-1
https://github.com/jabberd2/jabberd2/issues/85 Issue TrackingPatchThird Party Advisory
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=2e97c279 Issue TrackingPatch
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162537.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162549.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-07/msg00042.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html
http://www.debian.org/security/2016/dsa-3578
http://www.openwall.com/lists/oss-security/2015/02/23/25 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/72736
http://www.ubuntu.com/usn/USN-3068-1
https://github.com/jabberd2/jabberd2/issues/85 Issue TrackingPatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2015-2059), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.