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OpenAdvisories
High ALAS2-2026-3302 2 CVEs

Important: kernel security update (Amazon Linux 2)

Published May 8, 2026 · Updated May 13, 2026

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-43500: In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present CVE-2026-43284: In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags "Dirty Frag" and other issues in Amazon Linux kernels: https://aws.amazon.com/security/security-bulletins/2026-027-aws/

Fixed packages 14

ReleasePackageFixed in
Amazon Linux · 2 kernel 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-debuginfo 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-debuginfo-common-aarch64 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-debuginfo-common-x86_64 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-devel 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-headers 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-livepatch-4.14.355-282.728 0:1.0-0.amzn2
Amazon Linux · 2 kernel-tools 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-tools-debuginfo 0:4.14.355-282.728.amzn2
Amazon Linux · 2 kernel-tools-devel 0:4.14.355-282.728.amzn2
Amazon Linux · 2 perf 0:4.14.355-282.728.amzn2
Amazon Linux · 2 perf-debuginfo 0:4.14.355-282.728.amzn2
Amazon Linux · 2 python-perf 0:4.14.355-282.728.amzn2
Amazon Linux · 2 python-perf-debuginfo 0:4.14.355-282.728.amzn2

Vulnerabilities 2

  • High 8.8
    CVE-2026-43284 Public exploit EPSS 94%

    xfrm: esp: avoid in-place decrypt on shared skb frags

    In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter()…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-43500 Public exploit EPSS 94%

    rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present

    In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-43284.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-43500.html