CVE-2017-13733

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.

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.

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.

Possible RCE via stack-based buffer overflow in the fmt_entry function (CVE-2017-10684).

Possible RCE with format string vulnerability in the fmt_entry function (CVE-2017-10685).

Illegal address access in append_acs (CVE-2017-11112).

Dereferencing NULL pointer in _nc_parse_entry (CVE-2017-11113).

Fix infinite loop in the next_char function in comp_scan.c (CVE-2017-13728).

Fix illegal address access in the _nc_save_str (CVE-2017-13729).

Fix illegal address access in the function _nc_read_entry_source() (CVE-2017-13730).

Fix illegal address access in the function postprocess_termcap() (CVE-2017-13731).

Fix illegal address access in the function dump_uses() (CVE-2017-13732).

Fix illegal address access in the fmt_entry function (CVE-2017-13733).

Fix stack-based buffer overflow in the _nc_write_entry() function (CVE-2017-16879).

This update for ncurses fixes the following issues:

Security issues fixed:

• CVE-2017-13728: Fix infinite loop in the next_char function in comp_scan.c (bsc#1056136).
• CVE-2017-13729: Fix illegal address access in the _nc_save_str (bsc#1056132).
• CVE-2017-13730: Fix illegal address access in the function _nc_read_entry_source() (bsc#1056131).
• CVE-2017-13731: Fix illegal address access in the function postprocess_termcap() (bsc#1056129).
• CVE-2017-13732: Fix illegal address access in the function dump_uses() (bsc#1056128).
• CVE-2017-13733: Fix illegal address access in the fmt_entry function (bsc#1056127).
• CVE-2017-16879: Fix stack-based buffer overflow in the _nc_write_entry() function (bsc#1069530).

This update for ncurses fixes the following issues:

Security issues fixed:

• CVE-2017-13728: Fix infinite loop in the next_char function in comp_scan.c (bsc#1056136).
• CVE-2017-13730: Fix illegal address access in the function _nc_read_entry_source() (bsc#1056131).
• CVE-2017-13733: Fix illegal address access in the fmt_entry function (bsc#1056127).
• CVE-2017-13729: Fix illegal address access in the _nc_save_str (bsc#1056132).
• CVE-2017-13732: Fix illegal address access in the function dump_uses() (bsc#1056128).
• CVE-2017-13731: Fix illegal address access in the function postprocess_termcap() (bsc#1056129).

This update for ncurses fixes the following issues:

Security issue fixed:

• CVE-2017-13733: Fix illegal address access in the fmt_entry function (bsc#1056127).

This update for ncurses fixes several issues.

These security issues were fixed:

• CVE-2017-13734: Prevent illegal address access in the _nc_safe_strcat function in strings.c that might have lead to a remote denial of service attack (bsc#1056126).
• CVE-2017-13733: Prevent illegal address access in the fmt_entry function in progs/dump_entry.c that might have lead to a remote denial of service attack (bsc#1056127).
• CVE-2017-13732: Prevent illegal address access in the function dump_uses() in progs/dump_entry.c that might have lead to a remote denial of service attack (bsc#1056128).
• CVE-2017-13731: Prevent illegal address access in the function postprocess_termcap() in parse_entry.c that might have lead to a remote denial of service attack (bsc#1056129).
• CVE-2017-13730: Prevent illegal address access in the function _nc_read_entry_source() in progs/tic.c that might have lead to a remote denial of service attack (bsc#1056131).
• CVE-2017-13729: Prevent illegal address access in the _nc_save_str function in alloc_entry.c that might have lead to a remote denial of service attack (bsc#1056132).
• CVE-2017-13728: Prevent infinite loop in the next_char function in comp_scan.c that might have lead to a remote denial of service attack (bsc#1056136).

It was discovered that ncurses was not properly checking array bounds when executing the fmt_entry function, which could result in an out-of-bounds write. An attacker could possibly use this issue to execute arbitrary code. (CVE-2017-10684)

It was discovered that ncurses was not properly checking user input, which could result in it being treated as a format argument. An attacker could possibly use this issue to expose sensitive information or to execute arbitrary code. (CVE-2017-10685)

It was discovered that ncurses was incorrectly performing memory management operations and was not blocking access attempts to illegal memory locations. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-11112, CVE-2017-13729, CVE-2017-13730, CVE-2017-13731, CVE-2017-13732, CVE-2017-13733, CVE-2017-13734)

It was discovered that ncurses was not properly performing checks on pointer values before attempting to access the related memory locations, which could lead to NULL pointer dereferencing. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-11113)

It was discovered that ncurses was incorrectly handling loops in libtic, which could lead to the execution of an infinite loop. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-13728)