7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.3 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:S/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
5.2%
qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13
allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-212.223 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-150.167 | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < 5.15.0-73.80 | UNKNOWN |
ubuntu | 22.10 | noarch | linux | < 5.19.0-43.44 | UNKNOWN |
ubuntu | 23.04 | noarch | linux | < 6.2.0-23.23 | UNKNOWN |
ubuntu | 14.04 | noarch | linux | < 3.13.0-194.245) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-241.275) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 22.04 | noarch | linux-allwinner-5.19 | < 5.19.0-1013.13~22.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1157.170 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1103.111 | UNKNOWN |
cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13
git.kernel.org/linus/3037933448f60f9acb705997eae62013ecb81e0d (6.3)
github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d
launchpad.net/bugs/cve/CVE-2023-31436
nvd.nist.gov/vuln/detail/CVE-2023-31436
security-tracker.debian.org/tracker/CVE-2023-31436
ubuntu.com/security/notices/USN-6127-1
ubuntu.com/security/notices/USN-6130-1
ubuntu.com/security/notices/USN-6131-1
ubuntu.com/security/notices/USN-6132-1
ubuntu.com/security/notices/USN-6135-1
ubuntu.com/security/notices/USN-6149-1
ubuntu.com/security/notices/USN-6150-1
ubuntu.com/security/notices/USN-6162-1
ubuntu.com/security/notices/USN-6173-1
ubuntu.com/security/notices/USN-6175-1
ubuntu.com/security/notices/USN-6186-1
ubuntu.com/security/notices/USN-6222-1
ubuntu.com/security/notices/USN-6256-1
ubuntu.com/security/notices/USN-6385-1
ubuntu.com/security/notices/USN-6460-1
www.cve.org/CVERecord?id=CVE-2023-31436
www.spinics.net/lists/stable-commits/msg294885.html
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.3 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:S/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
5.2%