CVE-2019-19602
published 2019-12-05CVE-2019-19602: 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…
PriorityP425medium6.1CVSS 3.1
AVLACLPRLUINSUCHINAL
EPSS
0.61%
45.7th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | linux | < linux 5.3.15-1 (bookworm) | linux 5.3.15-1 (bookworm) |
| linux | linux_kernel | < 5.4.2 | 5.4.2 |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
CVSS provenance
nvdv3.16.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
nvdv2.05.4MEDIUMAV:L/AC:M/Au:N/C:C/I:N/A:P
osv6.1MEDIUM
vendor_debian6.1MEDIUM
vendor_redhat6.1MEDIUM
vendor_ubuntu5.5MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-02-19·CVSS 5.5
CVE-2019-15291 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel did not properly clear data
structures on context switches for certain Intel graphics processors. A
local attacker could use this to expose sensitive information.
(CVE-2019-14615)
It was discovered that the Atheros 802.11ac wireless USB device driver in
the Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2019-15099)
It was discovered that the HSA Linux kernel driver for AMD GPU devices did
not properly check for errors in certain situations, leading to a NULL
pointer dereference. A local attacker could possibly use this to cause a
denial of ser
Red Hat
kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS
vendor_redhat·2019-11-26·CVSS 6.1
CVE-2019-19602 [MEDIUM] CWE-672 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS
kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS
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.
A flaw was found in the Linux kernel. When compiled with GCC 9, a vector register corruption occurs on return from a signal handler where the top page of the signal stack had not yet been paged in which can allow a local attacker with special user privilege (or root) to leak kernel
Debian
CVE-2019-19602: linux - fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel be...
vendor_debian·2019·CVSS 6.1
CVE-2019-19602 [MEDIUM] CVE-2019-19602: linux - fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel be...
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.
Scope: local
bookworm: resolved (fixed in 5.3.15-1)
bullseye: resolved (fixed in 5.3.15-1)
forky: resolved (fixed in 5.3.15-1)
sid: resolved (fixed in 5.3.15-1)
trixie: resolved (fixed in 5.3.15-1)
GHSA
GHSA-7p3p-c3r9-hpgr: fpregs_state_valid in arch/x86/include/asm/fpu/internal
ghsa_unreviewed·2022-05-24
CVE-2019-19602 [MEDIUM] GHSA-7p3p-c3r9-hpgr: fpregs_state_valid in arch/x86/include/asm/fpu/internal
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.
OSV
linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3 vulnerabilities
osv·2020-02-19·CVSS 5.5
CVE-2019-14615 [MEDIUM] linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3 vulnerabilities
linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3 vulnerabilities
It was discovered that the Linux kernel did not properly clear data
structures on context switches for certain Intel graphics processors. A
local attacker could use this to expose sensitive information.
(CVE-2019-14615)
It was discovered that the Atheros 802.11ac wireless USB device driver in
the Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2019-15099)
It was discovered that the HSA Linux kernel driver for AMD GPU devices did
not properly check for errors in certain situations, leading to a NULL
pointer dereference. A local at
OSV
CVE-2019-19602: fpregs_state_valid in arch/x86/include/asm/fpu/internal
osv·2019-12-05·CVSS 6.1
CVE-2019-19602 [MEDIUM] CVE-2019-19602: fpregs_state_valid in arch/x86/include/asm/fpu/internal
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.
No detection rules found.
No public exploits indexed.
arXiv
TheHuzz: Instruction Fuzzing of Processors Using Golden-Reference Models for Finding Software-Exploitable Vulnerabilities
arxiv_fulltext·2022-01-24
TheHuzz: Instruction Fuzzing of Processors Using Golden-Reference Models for Finding Software-Exploitable Vulnerabilities
: Instruction Fuzzing of Processors Using Golden-Reference Models
for Finding Software-Exploitable Vulnerabilities
Rahul Kande^ , Addison Crump^ , Garrett Persyn^ , Patrick Jauernig^ , Ahmad-Reza Sadeghi^ ,
Akash Tyagi^ , Jeyavijayan Rajendran^
^ Texas A&M University, College Station, USA. ^ Technische Universit\"at Darmstadt, Germany.
[email protected], [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected]
## Abstract
The increasing complexity of modern processors poses many challenges to existing hardware verification tools and methodologies for detecting security-critical bugs. Recent
attacks on processors
have shown the fatal consequences of
uncovering and exploiting hardwa
Bugzilla
CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS [fedora-all]
bugzilla·2019-12-17·CVSS 6.1
CVE-2019-19602 [MEDIUM] CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS [fedora-all]
CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE
Bugzilla
CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS
bugzilla·2019-12-17·CVSS 6.1
CVE-2019-19602 [MEDIUM] CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS
CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS
A vulnerability was found in Linux kernel when compiled with GCC 9 could cause a vector register corruption on return from a signal handler where the top page of the signal stack had not yet been paged in. This flaw can allow a local attacker with special user privilege (or root) to leak kernel internal information.
The content of fpregs_state_valid (or FPU register) may change during preemption and must not be cached. While in current situation FPU data like state/owner is never changed during the lifetime of a task and they remained constant (which is not right).
With peferred FPU loading, compiler is no longer allowed to move the load of fpu_fpregs_owner_ctx somewhere else
https://bugzilla.kernel.org/show_bug.cgi?id=205663https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98https://github.com/golang/go/issues/35777#issuecomment-561935388https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98https://security.netapp.com/advisory/ntap-20200103-0001/https://usn.ubuntu.com/4284-1/https://bugzilla.kernel.org/show_bug.cgi?id=205663https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98https://github.com/golang/go/issues/35777#issuecomment-561935388https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98https://security.netapp.com/advisory/ntap-20200103-0001/https://usn.ubuntu.com/4284-1/
2019-12-05
Published