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USN-8389-1: Linux kernel vulnerabilities

🗓️ 04 Jun 2026 21:09:56Reported by UbuntuType 
ubuntu
 ubuntu🔗 ubuntu.com👁 2 Views

Linux kernel vulnerabilities allow local privilege escalation or container escape via Dirty Frag handling, XFRM ESP-in-TCP, RxRPC paged fragments, and an RDS flaw.

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OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu20.04anylinux-aws-5.45.4.0.1160.157linux-aws-5.4_5.4.0.1160.157_any.deb
Ubuntu20.04anylinux-aws-cloud-tools-5.4.0-11605.4.0-1160.170linux-aws-cloud-tools-5.4.0-1160_5.4.0-1160.170_any.deb
Ubuntu20.04anylinux-aws-fips5.4.0.1160.107linux-aws-fips_5.4.0.1160.107_any.deb
Ubuntu20.04anylinux-aws-fips-5.45.4.0.1160.107linux-aws-fips-5.4_5.4.0.1160.107_any.deb
Ubuntu20.04anylinux-aws-fips-headers-5.4.0-11605.4.0-1160.170+fips1linux-aws-fips-headers-5.4.0-1160_5.4.0-1160.170+fips1_any.deb
Ubuntu20.04anylinux-aws-fips-tools-5.4.0-11605.4.0-1160.170+fips1linux-aws-fips-tools-5.4.0-1160_5.4.0-1160.170+fips1_any.deb
Ubuntu20.04anylinux-aws-headers-5.4.0-11605.4.0-1160.170linux-aws-headers-5.4.0-1160_5.4.0-1160.170_any.deb
Ubuntu20.04anylinux-aws-lts-20.045.4.0.1160.157linux-aws-lts-20.04_5.4.0.1160.157_any.deb
Ubuntu20.04anylinux-aws-tools-5.4.0-11605.4.0-1160.170linux-aws-tools-5.4.0-1160_5.4.0-1160.170_any.deb
Ubuntu18.04anylinux-azure5.4.0.1164.170~18.04.1linux-azure_5.4.0.1164.170~18.04.1_any.deb
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04 Jun 2026 21:09Current
6Medium risk
Vulners AI Score6
CVSS 3.17.8 - 8.8
EPSS0.40266
SSVC
linux kerneldirty fragmentpaged fragmentsrxrpc protocolrds protocolprivilege escalationcontainer escapenetwork subsystem
2