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Critical USN-6236-1 9 CVEs

connman vulnerabilities

Published Jul 19, 2023 · Updated Jun 25, 2026

Summary

It was discovered that ConnMan could be made to write out of bounds. A
remote attacker could possibly use this issue to cause ConnMan to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
(CVE-2021-26675, CVE-2021-33833)

It was discovered that ConnMan could be made to leak sensitive information
via the gdhcp component. A remote attacker could possibly use this issue
to obtain information for further exploitation. This issue only affected
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-26676)

It was discovered that ConnMan could be made to read out of bounds. A
remote attacker could possibly use this issue to case ConnMan to crash,
resulting in a denial of service. This issue only affected Ubuntu 16.04
LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.
(CVE-2022-23096, CVE-2022-23097)

It was discovered that ConnMan could be made to run into an infinite loop.
A remote attacker could possibly use this issue to cause ConnMan to
consume resources and to stop operating, resulting in a denial of service.
This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04
LTS, and Ubuntu 22.04 LTS. (CVE-2022-23098)

It was discovered that ConnMan could be made to write out of bounds via
the gweb component. A remote attacker could possibly use this issue to
cause ConnMan to crash, resulting in a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu
18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-32292)

It was discovered that ConnMan did not properly manage memory under
certain circumstances. A remote attacker could possibly use this issue to
cause ConnMan to crash, resulting in a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu
18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-32293)

It was discovered that ConnMan could be made to write out of bounds via
the gdhcp component. A remote attacker could possibly use this issue to
cause ConnMan to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2023-28488)

Fixed packages 4

ReleasePackageFixed in
Ubuntu · 20.04 LTS 20.04:LTS connman 1.36-2ubuntu0.1
Ubuntu · 22.04 LTS 22.04:LTS connman 1.36-2.3ubuntu0.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS connman 1.21-1.2+deb8u1ubuntu0.1~esm1
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS connman 1.35-6ubuntu0.1~esm1

Vulnerabilities 9

References

  • report
    https://ubuntu.com/security/CVE-2021-26675
  • report
    https://ubuntu.com/security/CVE-2021-26676
  • report
    https://ubuntu.com/security/CVE-2021-33833
  • report
    https://ubuntu.com/security/CVE-2022-23096
  • report
    https://ubuntu.com/security/CVE-2022-23097
  • report
    https://ubuntu.com/security/CVE-2022-23098
  • report
    https://ubuntu.com/security/CVE-2022-32292
  • report
    https://ubuntu.com/security/CVE-2022-32293
  • report
    https://ubuntu.com/security/CVE-2023-28488