High
Canonical Ubuntu
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)
CVEs contained in this USN include: CVE-2021-27365, CVE-2021-27363, CVE-2021-27364.
Severity is high unless otherwise noted.
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
2021-04-14: Initial vulnerability report published.
CPE | Name | Operator | Version |
---|---|---|---|
xenial stemcells | lt | 456.152 | |
xenial stemcells | lt | 621.115 |