CVE-2017-1000366 Memory corruption in n/a

High 7.8 Published 19 Jun 2017 Updated 5 Aug 2024

Attackers can execute arbitrary code by crafting LD_LIBRARY_PATH values to alias heap and stack memory in glibc.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2017-1000366?

CVE-2017-1000366 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 19 Jun 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

glibc contains a vulnerability that allows specially crafted LD_LIBRARY_PATH values to manipulate the heap/stack, causing them to alias, potentially resulting in arbitrary code execution. Please note that additional hardening changes have been made to glibc to prevent manipulation of stack and heap memory but these issues are not directly exploitable, as such they have not been given a CVE. This affects glibc 2.25 and earlier.

Weakness: CWE-119

Which versions are affected by CVE-2017-1000366?

It affects 20 products.

Linux distribution packages (40)

`glibc` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc-common` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo-common` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc-devel` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc-headers` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc-static` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc-utils` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`nscd` Red Hat:enterprise_linux:6::client	All versions	`0:2.12-1.209.el6_9.2`
`glibc` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc-common` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo-common` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc-devel` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc-headers` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc-static` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc-utils` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`nscd` Red Hat:enterprise_linux:6::computenode	All versions	`0:2.12-1.209.el6_9.2`
`glibc` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc-common` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo-common` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc-devel` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc-headers` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc-static` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc-utils` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`nscd` Red Hat:enterprise_linux:6::server	All versions	`0:2.12-1.209.el6_9.2`
`glibc` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc-common` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc-debuginfo-common` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc-devel` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc-headers` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc-static` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc-utils` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`nscd` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.12-1.209.el6_9.2`
`glibc` Red Hat:enterprise_linux:7::client	All versions	`0:2.17-157.el7_3.4`
`glibc-common` Red Hat:enterprise_linux:7::client	All versions	`0:2.17-157.el7_3.4`
`glibc-debuginfo` Red Hat:enterprise_linux:7::client	All versions	`0:2.17-157.el7_3.4`
`glibc-debuginfo-common` Red Hat:enterprise_linux:7::client	All versions	`0:2.17-157.el7_3.4`

Products include Debian Debian Linux, Gnu Glibc, Mcafee Web Gateway, Novell Suse Linux Enterprise Desktop, Novell Suse Linux Enterprise Point of Sale, Novell Suse Linux Enterprise Server and 14 more.

How do I fix CVE-2017-1000366?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-1000366 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-1000366 exists.

Public exploit code: 3 Exploit-DB entries.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-1000366, DLA-992-1, DSA-3887-1, GHSA-45fw-2mcw-h3gw, RHSA-2017:1479, RHSA-2017:1480 and 7 more.