CVE-2018-3737 Regular Expression Denial of Service in sshpk

HighCVSS 7.5 EPSS 1.7%

Published: 2018-06-07 05:00
Updated: 2026-10-23 21:03
Exploit status: No public exploit known

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Description

sshpk is vulnerable to ReDoS when parsing crafted invalid public keys.

Affected products

Product	Affected versions	Fixed in
npm sshpk(npm)	< 1.13.2	1.13.2
debian/node-sshpk(Debian:12)	< 1.13.1+dfsg-2	1.13.1+dfsg-2
debian/node-sshpk(Debian:13)	< 1.13.1+dfsg-2	1.13.1+dfsg-2
debian/node-sshpk(Debian:14)	< 1.13.1+dfsg-2	1.13.1+dfsg-2
joyent sshpk	<= 1.13.1	No fix listed
HackerOne sshpk node module	= Versions up to and including 1.13.1	No fix listed

References

nvd.nist.gov third-party-advisory
hackerone.com exploit third-party-advisory
github.com
www.npmjs.com
github.com patch
github.com
Debian Security Tracker CVE-2018-3737 vendor-advisory
bugs.debian.org issue-tracking

CVSS v3.1

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

All scores (4)

v3.1 7.5 · nvd@nist.gov
v3.1 7.5 · github
v3.1 7.5 · osv:debian
v2.0 5.0 · nvd@nist.gov

Weakness & likelihood

EPSS (exploitation probability, 30 days): 1.71% (percentile 77.7)
CWE: CWE-185 Incorrect Regular Expression CWE-770 Allocation of Resources Without Limits or Throttling

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.