CVE-2017-7555 Memory corruption in augeas

Critical 9.8 Published Updated

A heap-based buffer overflow in the Augeas library allows attackers to cause crashes or execute arbitrary code via crafted strings.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-7555?

CVE-2017-7555 is a critical memory corruption vulnerability in Red Hat, Inc. augeas, published on 17 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Augeas versions up to and including 1.8.0 are vulnerable to heap-based buffer overflow due to improper handling of escaped strings. Attacker could send crafted strings that would cause the application using augeas to copy past the end of a buffer, leading to a crash or possible code execution.

Weakness: CWE-119, CWE-122

Which versions are affected by CVE-2017-7555?

It affects 1 product.

Linux distribution packages (37)
augeas Red Hat:enterprise_linux:7::clientAll versions0:1.4.0-2.el7_4.1
augeas-debuginfo Red Hat:enterprise_linux:7::clientAll versions0:1.4.0-2.el7_4.1
augeas-devel Red Hat:enterprise_linux:7::clientAll versions0:1.4.0-2.el7_4.1
augeas-libs Red Hat:enterprise_linux:7::clientAll versions0:1.4.0-2.el7_4.1
augeas Red Hat:enterprise_linux:7::computenodeAll versions0:1.4.0-2.el7_4.1
augeas-debuginfo Red Hat:enterprise_linux:7::computenodeAll versions0:1.4.0-2.el7_4.1
augeas-devel Red Hat:enterprise_linux:7::computenodeAll versions0:1.4.0-2.el7_4.1
augeas-libs Red Hat:enterprise_linux:7::computenodeAll versions0:1.4.0-2.el7_4.1
augeas Red Hat:enterprise_linux:7::serverAll versions0:1.4.0-2.el7_4.1
augeas-debuginfo Red Hat:enterprise_linux:7::serverAll versions0:1.4.0-2.el7_4.1
augeas-devel Red Hat:enterprise_linux:7::serverAll versions0:1.4.0-2.el7_4.1
augeas-libs Red Hat:enterprise_linux:7::serverAll versions0:1.4.0-2.el7_4.1
augeas Red Hat:enterprise_linux:7::workstationAll versions0:1.4.0-2.el7_4.1
augeas-debuginfo Red Hat:enterprise_linux:7::workstationAll versions0:1.4.0-2.el7_4.1
augeas-devel Red Hat:enterprise_linux:7::workstationAll versions0:1.4.0-2.el7_4.1
augeas-libs Red Hat:enterprise_linux:7::workstationAll versions0:1.4.0-2.el7_4.1
augeas Red Hat:rhel_aus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-debuginfo Red Hat:rhel_aus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-devel Red Hat:rhel_aus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-libs Red Hat:rhel_aus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas Red Hat:rhel_e4s:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-debuginfo Red Hat:rhel_e4s:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-devel Red Hat:rhel_e4s:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-libs Red Hat:rhel_e4s:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas Red Hat:rhel_tus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-debuginfo Red Hat:rhel_tus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-devel Red Hat:rhel_tus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas-libs Red Hat:rhel_tus:7.3::serverAll versions0:1.4.0-2.el7_3.1
augeas SUSE:Linux Enterprise Desktop 12 SP2All versions1.2.0-12.3.1
augeas SUSE:Linux Enterprise Desktop 12 SP3All versions1.2.0-17.3.1
augeas SUSE:Linux Enterprise Server 12 SP2All versions1.2.0-12.3.1
augeas SUSE:Linux Enterprise Server 12 SP3All versions1.2.0-17.3.1
augeas SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2All versions1.2.0-12.3.1
augeas SUSE:Linux Enterprise Server for SAP Applications 12 SP2All versions1.2.0-12.3.1
augeas SUSE:Linux Enterprise Server for SAP Applications 12 SP3All versions1.2.0-17.3.1
augeas SUSE:Linux Enterprise Software Development Kit 12 SP2All versions1.2.0-12.3.1
augeas SUSE:Linux Enterprise Software Development Kit 12 SP3All versions1.2.0-17.3.1

Products include Augeas Augeas.

How do I fix CVE-2017-7555?

Upgrade to a fixed version.

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

Is CVE-2017-7555 being exploited?

There is no known exploitation of CVE-2017-7555 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2017-7555, DEBIAN-CVE-2017-7555, DLA-1067-1, DSA-3949-1, GHSA-r8cq-v6vf-645g, MGASA-2017-0306 and 6 more.

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