CVE-2018-19217
** DISPUTED ** In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the...
CVE-2018-19217 is a medium vulnerability (CVSS 6.5) in Invisible-island Ncurses, published November 12, 2018. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 1.16%, the 67th percentile. Fixed in ncurses 6.0+20170701-1.
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
- Record
CVE-2018-19217- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
- Record
CVE-2018-19217- Updated
- 2026-11-02
EUVDEUVD-2018-10926 No score
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
- Record
EUVD-2018-10926- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gm6j-8p43-6m5w
** DISPUTED ** In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the...
** DISPUTED ** In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party.
- Record
GHSA-gm6j-8p43-6m5w- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVAZL-40988
CVE-2018-19217 affecting package ncurses 6.4-3
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
- Record
AZL-40988- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVBELL-CVE-2018-19217
CVE-2018-19217 does not affect BellSoft software
- Record
BELL-CVE-2018-19217- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
- Record
CVE-2018-19217- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-19217
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
- Record
DEBIAN-CVE-2018-19217- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-19217
In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
- Record
UBUNTU-CVE-2018-19217- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ncursesAzure Linux:3 |
through 6.4-3 | None known |
ncursesDebian:12 |
before 6.0+20170701-1 | 6.0+20170701-1 |
ncursesDebian:13 |
before 6.0+20170701-1 | 6.0+20170701-1 |
ncursesDebian:14 |
before 6.0+20170701-1 | 6.0+20170701-1 |
ncursesUbuntu:Pro:14.04:LTS |
before 5.9+20140118-1ubuntu1+esm1, plus listed versions 5.9+20130608-1ubuntu15.9+20131221-1ubuntu15.9+20140118-1ubuntu1 |
5.9+20140118-1ubuntu1+esm1 |
ncursesUbuntu:Pro:16.04:LTS |
before 6.0+20160213-1ubuntu1+esm1, plus listed versions 5.9+20150516-2ubuntu16.0+20151024-2ubuntu16.0+20151024-2ubuntu26.0+20160213-1ubuntu1 |
6.0+20160213-1ubuntu1+esm1 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
bugzilla.redhat.com/show_bug.cgi?id=1643753
nvd.nist.gov/vuln/detail/CVE-2018-19217
github.com/advisories/GHSA-gm6j-8p43-6m5w
docs.bell-sw.com/security/cves/CVE-2018-19217
security-tracker.debian.org/tracker/CVE-2018-19217
ubuntu.com/security/CVE-2018-19217
lists.gnu.org/archive/html/bug-ncurses/2019-04/msg00020.html
cve.org/CVERecord?id=CVE-2018-19217