Augeas up to 1.8.0 Escape String memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability classified as critical was found in Augeas up to 1.8.0. Affected by this vulnerability is an unknown function of the component Escape String Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 08/18/2017. The weakness was disclosed 08/17/2017 with Red Hat (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2017-7555 since 04/05/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 102787 (Debian DLA-1067-1 : augeas security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170931 (SUSE Enterprise Linux Security Update for augeas (SUSE-SU-2018:0653-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (102787).

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102787
Nessus Name: Debian DLA-1067-1 : augeas security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53677
OpenVAS Name: Debian Security Advisory DSA 3949-1 (augeas - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

04/05/2017 🔍
08/17/2017 +134 days 🔍
08/17/2017 +0 days 🔍
08/17/2017 +0 days 🔍
08/18/2017 +1 days 🔍
08/18/2017 +0 days 🔍
08/26/2017 +8 days 🔍
08/28/2017 +2 days 🔍
12/16/2022 +1936 days 🔍

Sourcesinfo

Advisory: RHSA-2017:2788
Researcher: Han Han
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7555 (🔍)
OVAL: 🔍

SecurityFocus: 100378 - augeas CVE-2017-7555 Memory Corruption Vulnerability

Entryinfo

Created: 08/18/2017 08:55
Updated: 12/16/2022 07:39
Changes: 08/18/2017 08:55 (72), 11/08/2019 07:41 (7), 01/09/2021 16:28 (2), 12/16/2022 07:39 (4)
Complete: 🔍

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