Multiple vulnerabilities in ncurses



Published: 2023-12-11
Risk Medium
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2020-19185
CVE-2020-19186
CVE-2020-19187
CVE-2020-19188
CVE-2020-19190
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
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ncurses
Universal components / Libraries / Libraries used by multiple products

Vendor

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU84085

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-19185

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the one_one_mapping() function in progs/dump_entry.c. A remote attacker can send a specially crafted command to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ncurses: before 6.2

External links

http://github.com/zjuchenyuan/fuzzpoc/blob/master/infotocap_poc1.md
http://security.netapp.com/advisory/ntap-20231006-0005/


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.

2) Out-of-bounds write

EUVDB-ID: #VU84084

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-19186

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the _nc_find_entry() function in tinfo/comp_hash.c. A remote attacker can send a specially crafted command to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ncurses: before 6.2

External links

http://github.com/zjuchenyuan/fuzzpoc/blob/master/infotocap_poc2.md
http://security.netapp.com/advisory/ntap-20231006-0005/


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.

3) Out-of-bounds write

EUVDB-ID: #VU84083

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-19187

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the fmt_entry() function in progs/dump_entry.c. A remote attacker can send a specially crafted command to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ncurses: before 6.2

External links

http://github.com/zjuchenyuan/fuzzpoc/blob/master/infotocap_poc3.md
http://security.netapp.com/advisory/ntap-20231006-0005/


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.

4) Out-of-bounds write

EUVDB-ID: #VU84082

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-19188

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the fmt_entry() function in progs/dump_entry.c. A remote attacker can send a specially crafted command to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ncurses: before 6.2

External links

http://github.com/zjuchenyuan/fuzzpoc/blob/master/infotocap_poc4.md
http://security.netapp.com/advisory/ntap-20231006-0005/


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.

5) Out-of-bounds write

EUVDB-ID: #VU84081

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-19190

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the _nc_find_entry() function in tinfo/comp_hash.c. A remote attacker can send a specially crafted command to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ncurses: before 6.2

External links

http://github.com/zjuchenyuan/fuzzpoc/blob/master/infotocap_poc6.md
http://security.netapp.com/advisory/ntap-20231006-0005/


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.



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