CVE & CISA-KEV Catalog

CVE-2017-13728

HIGHEPSS 89th pctl

7.5

CVSS v3

Description

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.

How to fix

Remediation Available

ncursesDebian

Fixed in:6.0+20170827-1CVE-2017-13728

Fixed in:6.0+20170827-1CVE-2017-13728

Fixed in:6.0+20170827-1CVE-2017-13728

Fixed in:6.0+20170827-1CVE-2017-13728

lib32ncurses5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

lib32ncursesw5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

lib32tinfo5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

lib64ncurses5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

lib64tinfo5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

libncurses5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

libncursesw5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

libtinfo5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

libx32ncurses5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

libx32ncursesw5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

libx32tinfo5Ubuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

ncursesUbuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

ncurses-baseUbuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

ncurses-binUbuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

ncurses-termUbuntu

Fixed in:5.9+20140118-1ubuntu1+esm1USN-5448-1

Fixed in:6.0+20160213-1ubuntu1+esm1USN-5448-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.90%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Exploit1

bugzilla.redhat.com

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.