SB2015081201 - Buffer overflow in GNU Libidn
Published: August 12, 2015 Updated: July 28, 2020
Security Bulletin ID
SB2015081201
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2015-2059)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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
Install update from vendor's website.
References
- http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=2e97c279
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162537.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162549.html
- http://lists.opensuse.org/opensuse-updates/2015-07/msg00042.html
- 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
- http://www.securityfocus.com/bid/72736
- http://www.ubuntu.com/usn/USN-3068-1
- https://github.com/jabberd2/jabberd2/issues/85