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TI-2022-06049 Aliases CVE-2022-21672

/etc/pki/tls and /etc/ssl/certs include distrusted certificates in make-ca

Priority LOW 30CWE-115Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

make-ca is a utility to deliver and manage a complete PKI configuration for workstations and servers. Starting with version 0.9 and prior to version 1.10, make-ca misinterprets Mozilla certdata.txt and treats explicitly untrusted certificates like trusted ones, causing those explicitly untrusted certificates trusted by the system. The explicitly untrusted certificates were used by some CAs already hacked. Hostile attackers may perform a MIM attack exploiting them. Everyone using the affected versions of make-ca should upgrade to make-ca-1.10, and run `make-ca -f -g` as the `root` user to regenerate the trusted store immediately. As a workaround, users may delete the untrusted certificates from /etc/pki/tls and /etc/ssl/certs manually (or by a script), but this is not recommended because the manual changes will be overwritten next time running make-ca to update the trusted anchor.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00739 54th percentileScored 2026-11-07
Fix Fixed make-ca (lfs-book): 1.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
lfs-bookmake-ca0.9 to before 1.101.10Patch availableCNA
  • make-ca Vendorlfs-book Affected 0.9 to before 1.10 Fixed in 1.10 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:linuxfromscratch:make-ca:*:*:*:*:*:*:*:*0.9 to before 1.10VulnerableLinuxfromscratch
  • cpe:2.3:a:linuxfromscratch:make-ca:*:*:*:*:*:*:*:* Versions 0.9 to before 1.10 Vulnerable ·Linuxfromscratch

Remediation

  • Fix · CNA make-ca (lfs-book) Fixed in 1.10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-21672

References

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences