Ubuntu.comUB:CVE-2021-3506CVE-2021-3506
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
5.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:N/A:C
0.0004 Low
EPSS
Percentile
5.3%
An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in
the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds
check failure allows a local attacker to gain access to out-of-bounds
memory leading to a system crash or a leak of internal kernel information.
The highest threat from this vulnerability is to system availability.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1051.53~18.04.1 | UNKNOWN |
| ubuntu | 20.10 | noarch | linux | < 5.8.0-61.68 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux | < 4.15.0-173.182 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < 5.4.0-77.86 | UNKNOWN |
| ubuntu | 21.04 | noarch | linux | < 5.11.0-22.23 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < 4.4.0-222.255) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1102.107) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1124.133 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1051.53 | UNKNOWN |
| ubuntu | 20.10 | noarch | linux-aws | < 5.8.0-1039.41 | UNKNOWN |
References
bugzilla.redhat.com/show_bug.cgi?id=1944298
launchpad.net/bugs/cve/CVE-2021-3506
lore.kernel.org/lkml/[email protected]/
nvd.nist.gov/vuln/detail/CVE-2021-3506
security-tracker.debian.org/tracker/CVE-2021-3506
ubuntu.com/security/notices/USN-4997-1
ubuntu.com/security/notices/USN-4997-2
ubuntu.com/security/notices/USN-5000-1
ubuntu.com/security/notices/USN-5000-2
ubuntu.com/security/notices/USN-5001-1
ubuntu.com/security/notices/USN-5016-1
ubuntu.com/security/notices/USN-5339-1
ubuntu.com/security/notices/USN-5343-1
www.cve.org/CVERecord?id=CVE-2021-3506
www.mail-archive.com/[email protected]/msg2520013.html
www.openwall.com/lists/oss-security/2021/03/28/2
Related
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
5.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:N/A:C
0.0004 Low
EPSS
Percentile
5.3%