ncurses 6.0 parse_entry.c postprocess_termcap memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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5.6 | $0-$5k | 0.00 |
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 vulnerability database at Tenable (103797). Similar entries are available at 104367, 105922, 105923 and 105924.
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.8
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 6.5
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CVSSv2
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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Nessus ID: 103797
Nessus Name: FreeBSD : ncurses -- multiple issues (b84dbd94-e894-4c91-b8cd-d328537b1b2b)
Nessus File: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: UpgradeStatus: 🔍
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Timeline
07/21/2017 🔍08/29/2017 🔍
08/29/2017 🔍
08/29/2017 🔍
08/29/2017 🔍
08/30/2017 🔍
10/11/2017 🔍
10/12/2017 🔍
01/10/2021 🔍
Sources
Advisory: bugzilla.redhat.comResearcher: IBM
Status: Confirmed
CVE: CVE-2017-13731 (🔍)
SecurityFocus: 99908 - IBM TRIRIGA Application Platform CVE-2017-1373 Unspecified Remote Privilege Escalation Vulnerability
See also: 🔍
Entry
Created: 08/30/2017 08:54Updated: 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: 18:A8F:103
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