Operation on a Resource after Expiration or Release Affecting perf package, versions <0:4.18.0-240.el8
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Test your applications- Snyk ID SNYK-RHEL8-PERF-3831677
- published 26 Jul 2021
- disclosed 26 Nov 2019
Introduced: 26 Nov 2019
CVE-2019-19602 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-240.el8 or higher.
This issue was patched in RHSA-2020:4431.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.
References
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://access.redhat.com/security/cve/CVE-2019-19602
- https://bugzilla.kernel.org/show_bug.cgi?id=205663
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2
- https://github.com/golang/go/issues/35777#issuecomment-561935388
- https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98
- https://access.redhat.com/errata/RHSA-2020:4431
- https://usn.ubuntu.com/4284-1/