Vulnerability identifier: #VU82358

Vulnerability risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-19189

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
ncurses
Universal components / Libraries / Libraries used by multiple products

Vendor:

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the postprocess_terminfo() function in tinfo/parse_entry. A local user can run a specially crafted command to trigger an out-of-bounds write and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://github.com/zjuchenyuan/fuzzpoc/blob/master/infotocap_poc5.md
http://lists.debian.org/debian-lts-announce/2023/09/msg00033.html
http://security.netapp.com/advisory/ntap-20231006-0005/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.