CVE-2019-13233
UnknownEPSS 0.47%
Last modified
CVE-2019-13233 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.1.9 |
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1879Exploit, Mailing List, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9Mailing List, Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f869616dd95e95c00bdd6b0fcd3421e8a4323Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323Patch, Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1879Exploit, Mailing List, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9Mailing List, Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f869616dd95e95c00bdd6b0fcd3421e8a4323Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-13233?
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.
How severe is CVE-2019-13233?
Severity scoring for CVE-2019-13233 is pending analysis. The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.
How do I fix CVE-2019-13233?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2019-13233?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST