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OpenAdvisories
Unscored USN-4889-1 3 CVEs

linux, linux-lts-xenial vulnerabilities

Published Mar 25, 2021 · Updated Jun 3, 2026

Summary

Adam Nichols discovered that heap overflows existed in the iSCSI subsystem
in the Linux kernel. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2021-27365)

Adam Nichols discovered that the iSCSI subsystem in the Linux kernel did
not properly restrict access to iSCSI transport handles. A local attacker
could use this to cause a denial of service or expose sensitive information
(kernel pointer addresses). (CVE-2021-27363)

Adam Nichols discovered that an out-of-bounds read existed in the iSCSI
subsystem in the Linux kernel. A local attacker could use this to cause a
denial of service (system crash) or expose sensitive information (kernel
memory). (CVE-2021-27364)

Fixed packages 2

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux 3.13.0-185.236
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux-lts-xenial 4.4.0-206.238~14.04.1

Vulnerabilities 3

References

  • report
    https://ubuntu.com/security/CVE-2021-27363
  • report
    https://ubuntu.com/security/CVE-2021-27364
  • report
    https://ubuntu.com/security/CVE-2021-27365