5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.6 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%
In the Linux kernel, the following vulnerability has been resolved:
maple_tree: fix mas_empty_area_rev() null pointer dereference Currently the
code calls mas_start() followed by mas_data_end() if the maple state is
MA_START, but mas_start() may return with the maple state node == NULL.
This will lead to a null pointer dereference when checking information in
the NULL node, which is done in mas_data_end(). Avoid setting the offset if
there is no node by waiting until after the maple state is checked for an
empty or single entry state. A user could trigger the events to cause a
kernel oops by unmapping all vmas to produce an empty maple tree, then
mapping a vma that would cause the scenario described above.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure-6.5 | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux-gcp | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-gcp | < any | UNKNOWN |
git.kernel.org/linus/955a923d2809803980ff574270f81510112be9cf (6.9)
git.kernel.org/stable/c/6c9c7c1e63b198a8b979ad963eb21410f10ccb00
git.kernel.org/stable/c/955a923d2809803980ff574270f81510112be9cf
git.kernel.org/stable/c/f3956791cf526540addd3295e4c1e0f0442486cc
launchpad.net/bugs/cve/CVE-2024-36891
nvd.nist.gov/vuln/detail/CVE-2024-36891
security-tracker.debian.org/tracker/CVE-2024-36891
www.cve.org/CVERecord?id=CVE-2024-36891
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.6 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%