CVE-2018-1095
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2018-1095
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-1095.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2018-1095
- Downstream
- Related
- Published
- 2018-04-02T03:29:00Z
- Modified
- 2025-08-09T20:01:25Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The ext4xattrcheckentries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (getacl NULL pointer dereference and system crash) via a crafted ext4 image.
- References
-
- https://access.redhat.com/errata/RHSA-2018:2948
- http://openwall.com/lists/oss-security/2018/03/29/1
- https://bugzilla.kernel.org/show_bug.cgi?id=199185
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=ce3fd194fcc6fbdc00ce095a852f22df97baa401
- https://bugzilla.redhat.com/show_bug.cgi?id=1560793
- https://usn.ubuntu.com/3695-1/
- https://usn.ubuntu.com/3695-2/