UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
12 explicit affected versions
41 explicit affected versions
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10 explicit affected versions
29 explicit affected versions
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26 explicit affected versions
51 explicit affected versions
12 explicit affected versions
1 explicit affected versions
1 explicit affected versions
23 explicit affected versions
1 explicit affected versions
11 explicit affected versions
21 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1879
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f869616dd95e95c00bdd6b0fcd3421e8a4323
- https://ubuntu.com/security/CVE-2019-13233
- https://ubuntu.com/security/notices/USN-4093-1
- https://ubuntu.com/security/notices/USN-4094-1
- https://ubuntu.com/security/notices/USN-4117-1
- https://ubuntu.com/security/notices/USN-4118-1
- https://www.cve.org/CVERecord?id=CVE-2019-13233