Ubuntu.comUB:CVE-2018-13097CVE-2018-13097
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
4.3 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.003 Low
EPSS
Percentile
65.3%
An issue was discovered in fs/f2fs/super.c in the Linux kernel through
4.17.3. There is an out-of-bounds read or a divide-by-zero error for an
incorrect user_block_count in a corrupted f2fs image, leading to a denial
of service (BUG).
Notes
| Author | Note |
|---|---|
| sbeattie | fixing git commit subject: “f2fs: fix to do sanity check with user_block_count” |
| tyhicks | The affected user base for this issue is likely small since f2fs is not the default filesystem and it is not widely used in Ubuntu |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < 4.15.0-58.64 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < 4.4.0-145.171 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1047.49 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1040.43 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1079.89 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1047.49~16.04.1 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-azure | < 5.0.0-1014.14~18.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-azure | < 4.15.0-1055.60 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-azure-edge | < 5.0.0-1014.14~18.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-azure-edge | < 4.15.0-1055.60 | UNKNOWN |
References
bugzilla.kernel.org/show_bug.cgi?id=200171
git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=78bbd741456e31e0acb983283a8d3993ba859c15
git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=9dc956b2c8523aed39d1e6508438be9fea28c8fc
git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=9dc956b2c8523aed39d1e6508438be9fea28c8fc
launchpad.net/bugs/cve/CVE-2018-13097
nvd.nist.gov/vuln/detail/CVE-2018-13097
security-tracker.debian.org/tracker/CVE-2018-13097
ubuntu.com/security/notices/USN-3932-1
ubuntu.com/security/notices/USN-3932-2
ubuntu.com/security/notices/USN-4094-1
ubuntu.com/security/notices/USN-4118-1
www.cve.org/CVERecord?id=CVE-2018-13097
Related
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
4.3 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.003 Low
EPSS
Percentile
65.3%