ncurses 6.0 parse_entry.c postprocess_termcap memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in ncurses 6.0. The affected element is the function postprocess_termcap of the file parse_entry.c. This manipulation causes memory corruption. This vulnerability is registered as CVE-2017-13731. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in ncurses 6.0 and classified as problematic. Affected by this vulnerability is the function postprocess_termcap of the file parse_entry.c. 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 availability. The summary by CVE is:

There is an illegal address access in the function postprocess_termcap() in parse_entry.c in ncurses 6.0 that will lead to a remote denial of service attack.

The bug was discovered 08/29/2017. The weakness was published 08/29/2017 (Website). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2017-13731 since 08/29/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 103797 (FreeBSD : ncurses -- multiple issues (b84dbd94-e894-4c91-b8cd-d328537b1b2b)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170513 (SUSE Enterprise Linux Security Update for ncurses (SUSE-SU-2017:3183-1)).

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

The vulnerability is also documented in the databases at Tenable (103797) and SecurityFocus (BID 99908†). Similar entries are available at VDB-104367, VDB-105922, VDB-105923 and VDB-105924. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103797
Nessus Name: FreeBSD : ncurses -- multiple issues (b84dbd94-e894-4c91-b8cd-d328537b1b2b)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/21/2017 🔍
08/29/2017 +39 days 🔍
08/29/2017 +0 days 🔍
08/29/2017 +0 days 🔍
08/29/2017 +0 days 🔍
08/30/2017 +1 days 🔍
10/11/2017 +42 days 🔍
10/12/2017 +1 days 🔍
01/10/2021 +1186 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Researcher: IBM
Status: Confirmed

CVE: CVE-2017-13731 (🔍)
GCVE (CVE): GCVE-0-2017-13731
GCVE (VulDB): GCVE-100-105925
SecurityFocus: 99908 - IBM TRIRIGA Application Platform CVE-2017-1373 Unspecified Remote Privilege Escalation Vulnerability

See also: 🔍

Entryinfo

Created: 08/30/2017 08:54
Updated: 01/10/2021 10:37
Changes: 08/30/2017 08:54 (63), 11/11/2019 16:47 (11), 01/10/2021 10:37 (3)
Complete: 🔍
Cache ID: 216::103

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