CVE-2019-19767

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Summary

CVECVE-2019-19767
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-12-12 20:15:00 UTC
Updated2020-01-03 11:15:00 UTC
DescriptionThe Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
205609 – Multiple bugs in __ext4_expand_extra_isize (OOB write and UAF write) MISC bugzilla.kernel.org Exploit, Issue Tracking, Vendor Advisory
USN-4284-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2 MISC cdn.kernel.org Release Notes, Vendor Advisory
[SECURITY] [DLA 2114-1] linux-4.9 security update MLIST lists.debian.org
kernel/git/torvalds/linux.git - Linux kernel source tree MISC git.kernel.org Patch, Vendor Advisory
USN-4287-2: Linux kernel (Azure) vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
USN-4258-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
December 2019 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
[security-announce] openSUSE-SU-2020:0336-1: important: Security update SUSE lists.opensuse.org
USN-4287-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
[SECURITY] [DLA 2068-1] linux security update MLIST lists.debian.org
205707 – LINUX KERNEL 5.3.10 - ext4_xattr_set_entry use-after-free MISC bugzilla.kernel.org Issue Tracking, Vendor Advisory
ext4: add more paranoia checking in ext4_expand_extra_isize handling · torvalds/linux@4ea9993 · GitHub MISC github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159684 Oracle Enterprise Linux Security Update for kernel (ELSA-2020-4431)
  • 610324 Google Android March 2021 Security Patch Missing for Huawei EMUI
  • 940256 AlmaLinux Security Update for kernel (ALSA-2020:4431)
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