Description

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.

References

http://www.securityfocus.com/bid/104291

https://access.redhat.com/errata/RHSA-2019:0525

https://bugs.chromium.org/p/project-zero/issues/detail?id=1580

https://bugzilla.kernel.org/show_bug.cgi?id=199803

https://usn.ubuntu.com/3752-1/

https://usn.ubuntu.com/3752-2/

https://usn.ubuntu.com/3752-3/

https://www.exploit-db.com/exploits/44832/

Details

Risk Information

CVSS v2

CVSS v3