Debian DLA-582-1 : libidn security update

Medium Nessus Plugin ID 92683


The remote Debian host is missing a security update.


Multiple vulnerabilities have been discovered in libidn. The Common Vulnerabilities and Exposures project identifies the following problems :


When idn is reading one zero byte as input an out-of-bounds-read occurred.


An out-of-bounds stack read is exploitable in idna_to_ascii_4i.


stringprep_utf8_nfkc_normalize reject invalid UTF-8, causes a crash.

For Debian 7 'Wheezy', these problems have been fixed in version 1.25-2+deb7u2.

We recommend that you upgrade your libidn packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Upgrade the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 92683

File Name: debian_DLA-582.nasl

Version: 2.7

Type: local

Agent: unix

Published: 2016/08/03

Updated: 2020/03/12

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:idn, p-cpe:/a:debian:debian_linux:libidn11, p-cpe:/a:debian:debian_linux:libidn11-dev, p-cpe:/a:debian:debian_linux:libidn11-java, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/08/02

Reference Information

CVE: CVE-2015-8948, CVE-2016-6261, CVE-2016-6263