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.

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.

According to the versions of the ncurses packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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)

  - There is an illegal address access in the
    _nc_safe_strcat function in strings.c in ncurses 6.0     that will lead to a remote denial of service     attack.(CVE-2017-13734)

  - There is an illegal address access in the _nc_save_str     function in alloc_entry.c in ncurses 6.0. It will lead     to a remote denial of service attack.(CVE-2017-13729)

  - There is an illegal address access in the fmt_entry     function in progs/dump_entry.c in ncurses 6.0 that     might lead to a remote denial of service     attack.(CVE-2017-13733)

  - There is an illegal address access in the function
    _nc_read_entry_source() in progs/tic.c in ncurses 6.0     that might lead to a remote denial of service     attack.(CVE-2017-13730)

  - There is an illegal address access in the function     dump_uses() in progs/dump_entry.c in ncurses 6.0 that     might lead to a remote denial of service     attack.(CVE-2017-13732)

  - 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.(CVE-2017-13731)

  - There is an infinite loop in the next_char function in     comp_scan.c in ncurses 6.0, related to libtic. A     crafted input will lead to a remote denial of service     attack.(CVE-2017-13728)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the ncurses packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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)

  - In ncurses 6.0, there is a stack-based buffer overflow     in the fmt_entry function. A crafted input will lead to     a remote arbitrary code execution     attack.(CVE-2017-10684)

  - In ncurses 6.0, there is a format string vulnerability     in the fmt_entry function. A crafted input will lead to     a remote arbitrary code execution     attack.(CVE-2017-10685)

  - In ncurses 6.0, there is an attempted     0xffffffffffffffff access in the append_acs function of     tinfo/parse_entry.c. It could lead to a remote denial     of service attack if the terminfo library code is used     to process untrusted terminfo data.(CVE-2017-11112)

  - In ncurses 6.0, there is a NULL Pointer Dereference in     the _nc_parse_entry function of tinfo/parse_entry.c. It     could lead to a remote denial of service attack if the     terminfo library code is used to process untrusted     terminfo data.(CVE-2017-11113)

  - There is an infinite loop in the next_char function in     comp_scan.c in ncurses 6.0, related to libtic. A     crafted input will lead to a remote denial of service     attack.(CVE-2017-13728)

  - There is an illegal address access in the _nc_save_str     function in alloc_entry.c in ncurses 6.0. It will lead     to a remote denial of service attack.(CVE-2017-13729)

  - There is an illegal address access in the function
    _nc_read_entry_source() in progs/tic.c in ncurses 6.0     that might lead to a remote denial of service     attack.(CVE-2017-13730)

  - 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.(CVE-2017-13731)

  - There is an illegal address access in the function     dump_uses() in progs/dump_entry.c in ncurses 6.0 that     might lead to a remote denial of service     attack.(CVE-2017-13732)

  - There is an illegal address access in the fmt_entry     function in progs/dump_entry.c in ncurses 6.0 that     might lead to a remote denial of service     attack.(CVE-2017-13733)

  - There is an illegal address access in the
    _nc_safe_strcat function in strings.c in ncurses 6.0     that will lead to a remote denial of service     attack.(CVE-2017-13734)

  - 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for ncurses fixes the following issues :

Security issue fixed :

  - CVE-2018-19211: Fixed denial of service issue that was     triggered by a NULL pointer dereference at function
    _nc_parse_entry (bsc#1115929).

Non-security issue fixed :

  - Remove scree.xterm from terminfo data base as with this     screen uses fallback TERM=screen (bsc#1103320). 

This update was imported from the SUSE:SLE-15:Update update project.

This update for ncurses fixes the following issues :

Security issue fixed :

CVE-2018-19211: Fixed denial of service issue that was triggered by a NULL pointer dereference at function _nc_parse_entry (bsc#1115929).

Non-security issue fixed: Remove scree.xterm from terminfo data base as with this screen uses fallback TERM=screen (bsc#1103320).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for ncurses fixes the following issue :

Security issue fixed :

  - CVE-2018-19211: Fixed denial of service issue that was     triggered by a NULL pointer dereference at function
    _nc_parse_entry (bsc#1115929).

This update was imported from the SUSE:SLE-12:Update update project.

This update for ncurses fixes the following issue :

Security issue fixed :

CVE-2018-19211: Fixed denial of service issue that was triggered by a NULL pointer dereference at function _nc_parse_entry (bsc#1115929).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
162173	Ubuntu 16.04 ESM : ncurses vulnerabilities (USN-5477-1)	Nessus	Ubuntu Local Security Checks	high
132169	EulerOS 2.0 SP3 : ncurses (EulerOS-SA-2019-2634)	Nessus	Huawei Local Security Checks	medium
131912	EulerOS 2.0 SP2 : ncurses (EulerOS-SA-2019-2420)	Nessus	Huawei Local Security Checks	critical
123401	openSUSE Security Update : ncurses (openSUSE-2019-984)	Nessus	SuSE Local Security Checks	medium
120179	SUSE SLED15 / SLES15 Security Update : ncurses (SUSE-SU-2018:4000-1)	Nessus	SuSE Local Security Checks	medium
119545	openSUSE Security Update : ncurses (openSUSE-2018-1516)	Nessus	SuSE Local Security Checks	medium
119542	openSUSE Security Update : ncurses (openSUSE-2018-1509)	Nessus	SuSE Local Security Checks	medium
119335	SUSE SLED12 / SLES12 Security Update : ncurses (SUSE-SU-2018:3967-1)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2018-19211

medium

Tenable Plugins

high

medium

critical

medium

medium

medium

medium

medium