Vulnerability Details CVE-2019-19319
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 62.1%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.4
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://bugzilla.suse.com/show_bug.cgi?id=1158021
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319
- 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/
- https://usn.ubuntu.com/4391-1/
- https://www.debian.org/security/2020/dsa-4698
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://bugzilla.suse.com/show_bug.cgi?id=1158021
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319
- 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/
- https://usn.ubuntu.com/4391-1/
- https://www.debian.org/security/2020/dsa-4698
Products affected by CVE-2019-19319
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cpe:2.3:o:linux:linux_kernel:5.0.21
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cpe:2.3:o:opensuse:leap:15.1
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cpe:2.3:o:redhat:enterprise_linux:7.0
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cpe:2.3:o:redhat:enterprise_linux:8.0