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OpenAdvisories
Critical USN-7582-1 4 CVEs

samba vulnerabilities

Published Jun 19, 2025 · Updated Jun 25, 2026

Summary

Evgeny Legerov discovered that Samba incorrectly handled buffers in
certain GSSAPI routines of Heimdal. A remote attacker could possibly use
this issue to cause Samba to crash, resulting in a denial of service.
(CVE-2022-3437)

Greg Hudson discovered that Samba incorrectly handled PAC parsing. On
32-bit systems, a remote attacker could use this issue to escalate
privileges, or possibly execute arbitrary code. (CVE-2022-42898)

Joseph Sutton discovered that Samba could be forced to issue rc4-hmac
encrypted Kerberos tickets. A remote attacker could possibly use this issue
to escalate privileges. This issue only affected Ubuntu 20.04 LTS and
Ubuntu 22.04 LTS. (CVE-2022-45141)

Florent Saudel discovered that Samba incorrectly handled certain Spotlight
requests. A remote attacker could possibly use this issue to cause Samba to
consume resources, leading to a denial of service. (CVE-2023-34966)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS samba 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm13
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS samba 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm2
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm1

Vulnerabilities 4

References

  • report
    https://ubuntu.com/security/CVE-2022-3437
  • report
    https://ubuntu.com/security/CVE-2022-42898
  • report
    https://ubuntu.com/security/CVE-2022-45141
  • report
    https://ubuntu.com/security/CVE-2023-34966