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CVE-2015-2059

7.5 · HIGH

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…

Published Aug 12, 2015gnuCWE-119EPSS 3.19%

Overview

CVE-2015-2059 is a high-severity vulnerability affecting gnu libidn. It was published on August 12, 2015 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from gnu. Update libidn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
gnulibidn0Affected

References

Refgit.savannah.gnu.org/cgit/libidn.git/commit/?id=2e97c279Reflists.fedoraproject.org/pipermail/package-announce/2015-July/162537.htmlReflists.fedoraproject.org/pipermail/package-announce/2015-July/162549.htmlReflists.opensuse.org/opensuse-updates/2015-07/msg00042.htmlReflists.opensuse.org/opensuse-updates/2016-08/msg00098.htmlRefwww.debian.org/security/2016/dsa-3578Refwww.openwall.com/lists/oss-security/2015/02/23/25Refwww.securityfocus.com/bid/72736Refwww.ubuntu.com/usn/USN-3068-1GitHubgithub.com/jabberd2/jabberd2/issues/85

How CyberStrike helps

Frequently asked questions

What is CVE-2015-2059?

CVE-2015-2059 is a high-severity vulnerability affecting gnu libidn. It was published on August 12, 2015 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2015-2059?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-2059?

Check the references section for vendor advisories and patches from gnu. Update libidn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-2059?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-2059 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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