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Ubuntu 16.04 ESM : ncurses vulnerabilities (USN-5477-1)

high Nessus Plugin ID 162173

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5477-1 advisory.

 - Stack-based buffer overflow in the _nc_write_entry function in tinfo/write_entry.c in ncurses 6.0 allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted terminfo file, as demonstrated by tic. (CVE-2017-16879)

 - In ncurses 6.1, there is a NULL pointer dereference at function _nc_parse_entry in parse_entry.c that will lead to a denial of service attack. The product proceeds to the dereference code path even after a dubious character `*' in name or alias field detection. (CVE-2018-19211)

 - There is a heap-based buffer over-read in the _nc_find_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012. (CVE-2019-17594)

 - There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012. (CVE-2019-17595)

 - An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow. (CVE-2021-39537)

 - ncurses 6.3 before patch 20220416 has an out-of-bounds read and segmentation violation in convert_strings in tinfo/read_entry.c in the terminfo library. (CVE-2022-29458)

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-5477-1

Plugin Details

Severity: High

ID: 162173

File Name: ubuntu_USN-5477-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 6/14/2022

Updated: 7/10/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-39537

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:lib32ncurses5, p-cpe:/a:canonical:ubuntu_linux:lib32ncurses5-dev, p-cpe:/a:canonical:ubuntu_linux:lib32ncursesw5, p-cpe:/a:canonical:ubuntu_linux:lib32ncursesw5-dev, p-cpe:/a:canonical:ubuntu_linux:lib32tinfo-dev, p-cpe:/a:canonical:ubuntu_linux:lib32tinfo5, p-cpe:/a:canonical:ubuntu_linux:lib64ncurses5, p-cpe:/a:canonical:ubuntu_linux:lib64ncurses5-dev, p-cpe:/a:canonical:ubuntu_linux:lib64tinfo5, p-cpe:/a:canonical:ubuntu_linux:libncurses5, p-cpe:/a:canonical:ubuntu_linux:libncurses5-dev, p-cpe:/a:canonical:ubuntu_linux:libncursesw5, p-cpe:/a:canonical:ubuntu_linux:libncursesw5-dev, p-cpe:/a:canonical:ubuntu_linux:libtinfo-dev, p-cpe:/a:canonical:ubuntu_linux:libtinfo5, p-cpe:/a:canonical:ubuntu_linux:libx32ncurses5, p-cpe:/a:canonical:ubuntu_linux:libx32ncurses5-dev, p-cpe:/a:canonical:ubuntu_linux:libx32ncursesw5, p-cpe:/a:canonical:ubuntu_linux:libx32ncursesw5-dev, p-cpe:/a:canonical:ubuntu_linux:libx32tinfo-dev, p-cpe:/a:canonical:ubuntu_linux:libx32tinfo5, p-cpe:/a:canonical:ubuntu_linux:ncurses-base, p-cpe:/a:canonical:ubuntu_linux:ncurses-bin, p-cpe:/a:canonical:ubuntu_linux:ncurses-examples, p-cpe:/a:canonical:ubuntu_linux:ncurses-term

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/14/2022

Vulnerability Publication Date: 11/22/2017

Reference Information

CVE: CVE-2017-16879, CVE-2018-19211, CVE-2019-17594, CVE-2019-17595, CVE-2021-39537, CVE-2022-29458

USN: 5477-1