CVE-2018-1093
low-risk
Published 2018-04-02
The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.
Do I need to act?
-
0.10% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10
Medium
LOCAL
/ LOW complexity
Affected Products (1)
Affected Vendors
References (28)
Mailing List
http://openwall.com/lists/oss-security/2018/03/29/1
Issue Tracking
https://bugzilla.kernel.org/show_bug.cgi?id=199181
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1560782
Mailing List
http://openwall.com/lists/oss-security/2018/03/29/1
Issue Tracking
https://bugzilla.kernel.org/show_bug.cgi?id=199181
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1560782
and 8 more references
23
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal