Ubuntu.comUB:CVE-2022-2991CVE-2022-2991
6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
MULTIPLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:M/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
18.0%
A heap-based buffer overflow was found in the Linux kernel’s LightNVM
subsystem. The issue results from the lack of proper validation of the
length of user-supplied data prior to copying it to a fixed-length
heap-based buffer. This vulnerability allows a local attacker to escalate
privileges and execute arbitrary code in the context of the kernel. The
attacker must first obtain the ability to execute high-privileged code on
the target system to exploit this vulnerability.
Bugs
Notes
| Author | Note |
|---|---|
| sbeattie | lightnvm introduced in v4.4, need to disable CONFIG_NVM everywhere |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < 4.15.0-191.202 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < 5.4.0-122.138 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < 4.4.0-239.273) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1139.150 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1081.88 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1117.123) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1155.170) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1081.88~18.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1139.150~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1086.91 | UNKNOWN |
References
access.redhat.com/security/cve/CVE-2022-2991
git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/lightnvm/Kconfig?h=v5.10.114&id=549209caabc89f2877ad5f62d11fca5c052e0e8
launchpad.net/bugs/cve/CVE-2022-2991
nvd.nist.gov/vuln/detail/CVE-2022-2991
security-tracker.debian.org/tracker/CVE-2022-2991
ubuntu.com/security/notices/USN-6001-1
ubuntu.com/security/notices/USN-6013-1
ubuntu.com/security/notices/USN-6014-1
www.cve.org/CVERecord?id=CVE-2022-2991
www.zerodayinitiative.com/advisories/ZDI-22-960/
Related
6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
MULTIPLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:M/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
18.0%