Vulnerability Description
In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 5.0.21 |
| Opensuse | Leap | 15.1 |
| Redhat | Enterprise Linux | 7.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1158021
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4391-1/
- https://www.debian.org/security/2020/dsa-4698
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1158021
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
FAQ
What is CVE-2019-19319?
CVE-2019-19319 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xa...
How severe is CVE-2019-19319?
CVE-2019-19319 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19319?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Opensuse Leap, Redhat Enterprise Linux.