Vulnerability Details : CVE-2018-13095
An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3. A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-13095
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-13095
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-13095
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-13095
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-13095
-
https://bugzilla.kernel.org/show_bug.cgi?id=199915
199915 – NULL pointer dereference in xfs_bmap_extents_to_btree() when mounting and operating a crafted imageIssue Tracking;Third Party Advisory
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https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=23fcb3340d033d9f081e21e6c12c2db7eaa541d3
xfs/xfs-linux.git - XFS kernel development treePatch;Third Party Advisory
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https://access.redhat.com/errata/RHSA-2019:1350
RHSA-2019:1350 - Security Advisory - Red Hat Customer Portal
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https://access.redhat.com/errata/RHSA-2019:2029
RHSA-2019:2029 - Security Advisory - Red Hat Customer Portal
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https://github.com/torvalds/linux/commit/23fcb3340d033d9f081e21e6c12c2db7eaa541d3
xfs: More robust inode extent count validation · torvalds/linux@23fcb33 · GitHubPatch;Third Party Advisory
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https://access.redhat.com/errata/RHSA-2019:2043
RHSA-2019:2043 - Security Advisory - Red Hat Customer Portal
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