Debian DSA-3887-1 : glibc - security update (Stack Clash)

High Nessus Plugin ID 100878

Synopsis

The remote Debian host is missing a security-related update.

Description

The Qualys Research Labs discovered various problems in the dynamic linker of the GNU C Library which allow local privilege escalation by clashing the stack. For the full details, please refer to their advisory published at:
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

Solution

Upgrade the glibc packages.

For the oldstable distribution (jessie), this problem has been fixed in version 2.19-18+deb8u10.

For the stable distribution (stretch), this problem has been fixed in version 2.24-11+deb9u1.

See Also

https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

https://packages.debian.org/source/jessie/glibc

https://packages.debian.org/source/stretch/glibc

https://www.debian.org/security/2017/dsa-3887

Plugin Details

Severity: High

ID: 100878

File Name: debian_DSA-3887.nasl

Version: 3.9

Type: local

Agent: unix

Published: 2017/06/20

Updated: 2019/05/31

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.6

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

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

CVSS v3.0

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:glibc, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/06/19

Vulnerability Publication Date: 2017/06/19

Reference Information

CVE: CVE-2017-1000366

DSA: 3887