The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS / 23.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6099-1 advisory.

    It was discovered that ncurses was incorrectly performing bounds checks when processing invalid hashcodes.
    An attacker could possibly use this issue to cause a denial of service or to expose sensitive information.
    This issue only affected Ubuntu 18.04 LTS. (CVE-2019-17594)

    It was discovered that ncurses was incorrectly handling end-of-string characters when processing terminfo     and termcap files. An attacker could possibly use this issue to cause a denial of service or to expose     sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-17595)

    It was discovered that ncurses was incorrectly handling end-of-string characters when converting between     termcap and terminfo formats. An attacker could possibly use this issue to cause a denial of service or     execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-39537)

    It was discovered that ncurses was incorrectly performing bounds checks when dealing with corrupt terminfo     data while reading a terminfo file. An attacker could possibly use this issue to cause a denial of service     or to expose sensitive information. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu     22.04 LTS. (CVE-2022-29458)

    It was discovered that ncurses was parsing environment variables when running with setuid applications and     not properly handling the processing of malformed data when doing so. A local attacker could possibly use     this issue to cause a denial of service (application crash) or execute arbitrary code. (CVE-2023-29491)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
176244	Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS / 23.04 : ncurses vulnerabilities (USN-6099-1)	Nessus	Ubuntu Local Security Checks	5/23/2023	9/3/2025	high
178753	macOS 13.x < 13.5 Multiple Vulnerabilities (HT213843)	Nessus	MacOS X Local Security Checks	7/24/2023	6/13/2024	critical

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