CVE-2019-15792

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Summary

CVECVE-2019-15792
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-04-24 00:15:00 UTC
Updated2020-05-01 14:51:00 UTC
DescriptionIn shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() calls fdget(oldfd), then without further checks passes the resulting file* into shiftfs_real_fdget(), which casts file->private_data, a void* that points to a filesystem-dependent type, to a "struct shiftfs_file_info *". As the private_data is not required to be a pointer, an attacker can use this to cause a denial of service or possibly execute arbitrary code.

Risk And Classification

Problem Types: CWE-843

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.04 All All All
Operating System Linux Linux Kernel 5.0 All All All
Operating System Linux Linux Kernel 5.3 All All All
Operating System Linux Linux Kernel 5.0 All All All
Operating System Linux Linux Kernel 5.3 All All All

References

ReferenceSourceLinkTags
USN-4184-1: Linux kernel vulnerabilities | Ubuntu security notices MISC usn.ubuntu.com Vendor Advisory
USN-4183-1: Linux kernel vulnerabilities | Ubuntu security notices MISC usn.ubuntu.com Vendor Advisory
~ubuntu-kernel/ubuntu/+source/linux/+git/eoan - [no description] MISC git.launchpad.net Mailing List, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Jann Horn of Google Project Zero

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