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Fencer Vulns
low 3.8

CVE-2024-6156 json

lxd CA certificate sign check bypass

published 2024-12-05 23 mo ago modified 2026-06-17 4 mo ago also GHSA-4c49-9fpc-hc3v , GO-2024-3312 , EUVD-2024-3419

cvss
3.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

Mark Laing discovered that LXD's PKI mode, until version 5.21.2, could be bypassed if the client's certificate was present in the trust store.

Patch / fix

  • go github.com/canonical/lxd 0.0.0-20240708073652-5a492a3f0036
  • Canonical Ltd. LXD 4.0.10, 5.0.4, 5.21.2, 6.1
  • canonical lxd 5.21.2
  • incus Debian 14, Debian 13 6.0.3-1

debian advisories DEBIAN-CVE-2024-6156

  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20241209T183251-1.1

opensuse advisories openSUSE-SU-2024:14567-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/canonical/lxd/security/advisories/GHSA-4c49-9fpc-hc3v referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
GitHub 3.1 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/canonical/lxd
<0.0.0-20240708073652-5a492a3f0036
0.0.0-20240708073652-5a492a3f0036

Affected products

  • Canonical Ltd. LXD
  • canonical lxd

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.