Buffer overflow in Kernel Heap-Based Buffer Overflow In Fs/ext4/xattr.c
CVE-2018-10840
Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (48.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Kernel Heap-based Buffer Overflow In Fs/ext4/xattr.c — versions n/a
- Linux Linux_kernel
- Canonical Ubuntu_linux — versions 14.04, 18.04
- Redhat Enterprise_linux — versions 7.0
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Exploit, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-10840?
- CVE-2018-10840 is a medium-severity vulnerability in Kernel Heap-Based Buffer Overflow In Fs/ext4/xattr.c, classified under Heap-based Buffer Overflow. CVSS score: 6.6/10. Published 2018-07-16.
- How severe is CVE-2018-10840?
- Medium severity. CVSS v3 base score is 6.6 out of 10.