4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
0.002 Low
EPSS
Percentile
56.5%
An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through
4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a
NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image.
This occurs because of a lack of proper validation that cached inodes are
free during allocation.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-58.64 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-201.233 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1047.49 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1085.89 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1121.135 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1047.49~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure | < 4.18.0-1011.11~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure | < 4.15.0-1055.60 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure-edge | < 4.18.0-1011.11~18.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-gcp | < 4.15.0-1040.42 | UNKNOWN |
bugzilla.kernel.org/show_bug.cgi?id=199367
git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=afca6c5b2595fc44383919fba740c194b0b76aff
github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76aff
launchpad.net/bugs/cve/CVE-2018-13093
nvd.nist.gov/vuln/detail/CVE-2018-13093
security-tracker.debian.org/tracker/CVE-2018-13093
ubuntu.com/security/notices/USN-4094-1
ubuntu.com/security/notices/USN-4118-1
ubuntu.com/security/notices/USN-4708-1
ubuntu.com/security/notices/USN-4709-1
www.cve.org/CVERecord?id=CVE-2018-13093
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
0.002 Low
EPSS
Percentile
56.5%