CVE-2019-11599

Public Exploit

Description

The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs, which allows local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.55%
Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory kernel.org Vendor Advisory kernel.org Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2019/04/29/2 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2019/04/29/1 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2019/04/30/1 third party advisory mailing list
https://www.exploit-db.com/exploits/46781/ exploit vdb entry third party advisory
http://www.securityfocus.com/bid/108113 vdb entry third party advisory
https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html mailing list exploit
https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html third party advisory mailing list
https://www.debian.org/security/2019/dsa-4465 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html mailing list broken link
https://seclists.org/bugtraq/2019/Jun/26 third party advisory mailing list
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html vdb entry third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html vdb entry third party advisory vendor advisory
https://seclists.org/bugtraq/2019/Jul/33 third party advisory mailing list
https://usn.ubuntu.com/4069-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4069-2/ vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:2043 vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:2029 vdb entry third party advisory vendor advisory
https://usn.ubuntu.com/4095-1/ vdb entry third party advisory vendor advisory
https://usn.ubuntu.com/4115-1/ vdb entry third party advisory vendor advisory
https://usn.ubuntu.com/4118-1/ vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:3309 vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:3517 vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0100 vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0103 vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0179 vdb entry third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0543 vdb entry third party advisory vendor advisory
https://www.oracle.com/security-alerts/cpuApr2021.html third party advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.114 mailing list vendor advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.37 mailing list vendor advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10 mailing list vendor advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1790 mailing list exploit third party advisory
https://github.com/torvalds/linux/commit/04f5866e41fb70690e28397487d8bd8eea7d712a third party advisory patch
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=04f5866e41fb70690e28397487d8bd8eea7d712a mailing list patch vendor advisory
http://packetstormsecurity.com/files/152663/Linux-Missing-Lockdown.html exploit vdb entry third party advisory
https://security.netapp.com/advisory/ntap-20190517-0002/ third party advisory
https://support.f5.com/csp/article/K51674118 third party advisory
http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html vdb entry third party advisory
https://support.f5.com/csp/article/K51674118?utm_source=f5support&%3Butm_medium=RSS third party advisory
https://security.netapp.com/advisory/ntap-20200608-0001/ vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-11599?
CVE-2019-11599 has been scored as a high severity vulnerability.
How to fix CVE-2019-11599?
To fix CVE-2019-11599, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11599 being actively exploited in the wild?
It is possible that CVE-2019-11599 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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