Amazon Linux AMI 2: CVE-2020-12656: Security patch for kernel (ALASKERNEL-5.4-2022-014)
Description
gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5 implementation in the Linux kernel through 5.6.10 lacks certain domain_release calls, leading to a memory leak. Note: This was disputed with the assertion that the issue does not grant any access not already available. It is a problem that on unloading a specific kernel module some memory is leaked, but loading kernel modules is a privileged operation. A user could also write a kernel module to consume any amount of memory they like and load that replicating the effect of this bug
Solution(s)
- amazon-linux-ami-2-upgrade-kernel
- amazon-linux-ami-2-upgrade-kernel-debuginfo
- amazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64
- amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64
- amazon-linux-ami-2-upgrade-kernel-devel
- amazon-linux-ami-2-upgrade-kernel-headers
- amazon-linux-ami-2-upgrade-kernel-tools
- amazon-linux-ami-2-upgrade-kernel-tools-debuginfo
- amazon-linux-ami-2-upgrade-kernel-tools-devel
- amazon-linux-ami-2-upgrade-perf
- amazon-linux-ami-2-upgrade-perf-debuginfo
- amazon-linux-ami-2-upgrade-python-perf
- amazon-linux-ami-2-upgrade-python-perf-debuginfo
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