Vulnerability Description
The 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.4.2 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://bugzilla.kernel.org/show_bug.cgi?id=205609ExploitIssue TrackingVendor Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=205707Issue TrackingVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2Release NotesVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4ea99PatchVendor Advisory
- https://github.com/torvalds/linux/commit/4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4258-1/
- https://usn.ubuntu.com/4284-1/
- https://usn.ubuntu.com/4287-1/
- https://usn.ubuntu.com/4287-2/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://bugzilla.kernel.org/show_bug.cgi?id=205609ExploitIssue TrackingVendor Advisory
FAQ
What is CVE-2019-19767?
CVE-2019-19767 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The 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...
How severe is CVE-2019-19767?
CVE-2019-19767 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19767?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.