CVEvulnerability
CVE-2019-19602
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2019-12-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
- CVSS 2.0 ([email protected])
- 5.4 MEDIUM — AV:L/AC:M/Au:N/C:C/I:N/A:P
- Weaknesses
- CWE-119
Description
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 configurations
• linux linux kernel (< 5.4.2)
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.10
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- https://bugzilla.kernel.org/show_bug.cgi?id=205663 Issue Tracking, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2 Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98 Exploit, Vendor Advisory
- https://github.com/golang/go/issues/35777#issuecomment-561935388 Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98 Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory
- https://usn.ubuntu.com/4284-1/ Third Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=205663 Issue Tracking, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2 Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98 Exploit, Vendor Advisory
- https://github.com/golang/go/issues/35777#issuecomment-561935388 Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98 Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory
- https://usn.ubuntu.com/4284-1/ Third Party Advisory