CVE-2019-11599

NameCVE-2019-11599
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1799-1, DLA-1824-1, DSA-4465-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.260-1fixed
bullseye5.10.140-1fixed
bullseye (security)5.10.149-2fixed
bookworm6.0.10-1fixed
sid6.0.10-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie3.16.68-1DLA-1799-1
linuxsourcestretch4.9.168-1+deb9u3DSA-4465-1
linuxsource(unstable)4.19.37-1
linux-4.9sourcejessie4.9.168-1+deb9u3~deb8u1DLA-1824-1

Notes

https://marc.info/?l=linux-mm&m=155355419911404&w=2
https://bugs.chromium.org/p/project-zero/issues/detail?id=1790

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