Denial of service in ncurses



Published: 2018-04-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-10754
CWE-ID CWE-476
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe
ncurses
Universal components / Libraries / Libraries used by multiple products

Vendor Free Software Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Null pointer dereference

EUVDB-ID: #VU13374

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-10754

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to improper parsing of terminfo files by the _nc_write_entry function, as defined in the tinfo/parse_entry.c source code file. A remote attacker can trick the victim into open a terminfo file that submits malicious input, trigger a NULL pointer dereference condition and cause the application to crash.

Mitigation

Update to version 6.1.20180414.

Vulnerable software versions

ncurses: 4.0 - 6.1.20180407

External links

http://invisible-island.net/ncurses/NEWS.html#t20180414


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



###SIDEBAR###