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OpenAdvisories

Description

An information leak flaw was found due to uninitialized memory in the Linux kernel's TIPC protocol subsystem, in the way a user sends a TIPC datagram to one or more destinations. This flaw allows a local user to read some kernel memory. This issue is limited to no more than 7 bytes, and the user cannot control what is read. This flaw affects the Linux kernel versions prior to 5.17-rc1.

Affected products

VendorProductAffectedFixed
— kernel Linux kernel versions prior to 5.17-rc1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.15.15-1 —
Debian 13 linux 5.15.15-1 —
Debian 12 linux 5.15.15-1 —
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS linux-aws-5.13 5.13.0-1019.21~20.04.1 USN-5337-1
Ubuntu 20.04 LTS linux-azure-5.13 5.13.0-1021.24~20.04.1 USN-5368-1
Ubuntu 20.04 LTS linux-gcp-5.13 5.13.0-1021.25~20.04.1 USN-5337-1
Ubuntu 20.04 LTS linux-hwe-5.13 5.13.0-37.42~20.04.1 USN-5337-1
Ubuntu 20.04 LTS linux-oem-5.14 5.14.0-1022.24 USN-5278-1
Ubuntu 20.04 LTS linux-oracle-5.13 5.13.0-1025.30~20.04.1 USN-5368-1
Ubuntu 20.04 LTS linux-riscv +17 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.26.1-1 —

Advisories 3

References