Ubuntu.comUB:CVE-2018-13099CVE-2018-13099
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
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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
45.2%
An issue was discovered in fs/f2fs/inline.c in the Linux kernel through
4.4. A denial of service (out-of-bounds memory access and BUG) can occur
for a modified f2fs filesystem image in which an inline inode contains an
invalid reserved blkaddr.
Notes
| Author | Note |
|---|---|
| sbeattie | possible reproducer in kernel bugzilla fix subject “f2fs: fix to do sanity check with reserved blkaddr of inline inode” |
| 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=200179
git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=cc60e90f9bfab8d6a7fb826937e824333c3bf94a
git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=4dbe38dc386910c668c75ae616b99b823b59f3eb
launchpad.net/bugs/cve/CVE-2018-13099
nvd.nist.gov/vuln/detail/CVE-2018-13099
security-tracker.debian.org/tracker/CVE-2018-13099
sourceforge.net/p/linux-f2fs/mailman/message/36356878/
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-2018-13099
Related
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
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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
45.2%