Ubuntu.comUB:CVE-2018-13100CVE-2018-13100
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
0.002 Low
EPSS
Percentile
64.3%
An issue was discovered in fs/f2fs/super.c in the Linux kernel through
4.17.3, which does not properly validate secs_per_zone in a corrupted f2fs
image, as demonstrated by a divide-by-zero error.
Notes
| Author | Note |
|---|---|
| sbeattie | possibly also 0cfe75c5b011994651a4ca6d74f20aa997bfc69a fix subject ‘f2fs: fix to do sanity check with secs_per_zone’ |
| 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 | < 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 | 16.04 | noarch | linux-azure-edge | < 4.15.0-1055.60 | UNKNOWN |
References
bugzilla.kernel.org/show_bug.cgi?id=200183
git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=977f9bb558cb4a95d53b10301f5c739ed8867d4d
git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=42bf546c1fe3f3654bdf914e977acbc2b80a5be5
launchpad.net/bugs/cve/CVE-2018-13100
nvd.nist.gov/vuln/detail/CVE-2018-13100
security-tracker.debian.org/tracker/CVE-2018-13100
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-2018-13100
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
0.002 Low
EPSS
Percentile
64.3%