CVE-2019-11599
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…
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A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 1.0%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
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.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.99% probability · 62th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 30 April 2019
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
EPSS 1.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.htmlThird Party Advisory, VDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/152663/Linux-Missing-Lockdown.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlThird Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2019/04/29/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/29/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/30/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108113Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2029Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2043Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3309Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3517Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2020:0100Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2020:0103Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2020:0179Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2020:0543Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1790Exploit, Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.114Mailing List, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.37Mailing List, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10Mailing List, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=04f5866e41fb70690e28397487d8bd8eea7d712aMailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/04f5866e41fb70690e28397487d8bd8eea7d712aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00041.htmlExploit
- https://lists.debian.org/debian-lts-announce/2019/05/msg00042.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00011.htmlBroken Link
- https://seclists.org/bugtraq/2019/Jul/33Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Jun/26Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190517-0002/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200608-0001/Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K51674118Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.