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Fencer Vulns
high 7.5

CVE-2024-8376 json

Memory leak

published 2024-10-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-49133

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap-use-after-free by sending specific sequences of "CONNECT", "DISCONNECT", "SUBSCRIBE", "UNSUBSCRIBE" and "PUBLISH" packets.

Patch / fix

  • Eclipse Foundation Mosquitto 2.0.19
  • mosquitto Debian 12 2.0.11-1.2+deb12u2
  • mosquitto Debian 14, Debian 13 2.0.20-1

debian advisories DEBIAN-CVE-2024-8376

  • cjson satellite capsule 6.16, satellite 6.16 1.7.17-1.el8sat
  • cjson satellite capsule 6.16, satellite 6.16 1.7.17-1.el9sat
  • foreman satellite utils 6.16, satellite capsule 6.16, satellite 6.16 3.12.0.1-1.el8sat
  • foreman satellite utils 6.16, satellite capsule 6.16, satellite 6.16 3.12.0.1-1.el9sat
  • katello satellite capsule 6.16, satellite 6.16 4.14.0-0.1.rc2.el8sat
  • katello satellite capsule 6.16, satellite 6.16 4.14.0-0.1.rc2.el9sat
  • libsolv satellite capsule 6.16, satellite 6.16 1:0.7.20-6.el8sat
  • libcomps satellite capsule 6.16, satellite 6.16 0.1.21-1.el8pc

red hat advisories RHSA-2024:8906RHSA-2024:8718RHSA-2024:8719

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-8376 updated cvss 7.5

mosquitto: sending specific sequences of packets may trigger memory leak

  • Red Hat Satellite 6 mosquitto
    affected: no fix available
  • Red Hat Satellite 6.14 for RHEL 8 mosquitto 2.0.19-1.el8sat
    fixed: vendor fix RHSA-2024:8718
  • Red Hat Satellite 6.15 for RHEL 8 mosquitto 2.0.19-1.el8sat
    fixed: vendor fix RHSA-2024:8719
  • Red Hat Satellite 6.16 for RHEL 8 mosquitto 2.0.19-1.el8sat Red Hat Satellite 6.16 for RHEL 9 mosquitto 2.0.19-1.el9sat
    fixed: vendor fix RHSA-2024:8906
  • Red Hat Satellite 6.14 for RHEL 8 foreman 3.7.0.14-1.el8sat, satellite 6.14.4.3-1.el8sat, foreman-cli 3.7.0.14-1.el8sat, foreman-ec2 3.7.0.14-1.el8sat, foreman-ovirt 3.7.0.14-1.el8sat, foreman-redis 3.7.0.14-1.el8sat, +12 more Red Hat Satellite 6.15 for RHEL 8 foreman 3.9.1.11-1.el8sat, satellite 6.15.4.2-1.el8sat, foreman-cli 3.9.1.11-1.el8sat, foreman-ec2 3.9.1.11-1.el8sat, foreman-pcp 3.9.1.11-1.el8sat, foreman-ovirt 3.9.1.11-1.el8sat, +12 more Red Hat Satellite 6.16 for RHEL 8 cjson 1.7.17-1.el8sat, libcomps 0.1.21-1.el8pc, libsolv 0.7.20-6.el8sat, python-jq 1.6.0-3.el8pc, python-pbr 5.8.0-7.el8pc, candlepin 4.4.16-1.el8sat, +676 more Red Hat Satellite 6.16 for RHEL 9 cjson 1.7.17-1.el9sat, libcomps 0.1.21-1.el9pc, python-jq 1.6.0-3.el9pc, python-pbr 5.8.0-7.el9pc, candlepin 4.4.16-1.el9sat, foreman 3.12.0.1-1.el9sat, +646 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 7.2 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N
CNA 4.0 7.2 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Eclipse Foundation Mosquitto

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
  • CWE-416 Use After Free
  • CWE-755 Improper Handling of Exceptional Conditions

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.