Vulnerability Description
In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bounds violation.
CVSS Score
7.0
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.1.9 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
- http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LS
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1879ExploitMailing ListPatch
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9Mailing ListRelease NotesVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f8Mailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a432PatchThird Party Advisory
- https://seclists.org/bugtraq/2019/Aug/13
- https://security.netapp.com/advisory/ntap-20190806-0001/
- https://support.f5.com/csp/article/K13331647?utm_source=f5support&%3Butm_medi
- https://usn.ubuntu.com/4093-1/
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4117-1/
- https://usn.ubuntu.com/4118-1/
FAQ
What is CVE-2019-13233?
CVE-2019-13233 is a vulnerability with a CVSS score of 7.0 (HIGH). In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bound...
How severe is CVE-2019-13233?
CVE-2019-13233 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-13233?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.