Veracode Vulnerability DatabaseVERACODE:18888NULL Pointer Dereference
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
Linux kernel is vulnerable to NULL pointer dereference attacks. This is due to mishandling of node-splitting in assoc_array implementation in assoc_array_insert_into_terminal_node function in lib/assoc_array.c. A local users could cause a denial of service via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operation.
References
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
www.securityfocus.com/bid/101678
access.redhat.com/articles/3327131
access.redhat.com/errata/RHSA-2018:0151
access.redhat.com/errata/RHSA-2018:0152
access.redhat.com/errata/RHSA-2018:0181
access.redhat.com/security/cve/CVE-2015-8539
access.redhat.com/security/cve/CVE-2017-12192
access.redhat.com/security/cve/CVE-2017-12193
access.redhat.com/security/cve/CVE-2017-15649
access.redhat.com/security/cve/CVE-2017-5715
access.redhat.com/security/cve/CVE-2017-5753
access.redhat.com/security/cve/CVE-2017-5754
access.redhat.com/security/cve/CVE-2017-7472
access.redhat.com/security/updates/classification/#important
access.redhat.com/security/vulnerabilities/speculativeexecution
bugzilla.redhat.com/show_bug.cgi?id=1501215
bugzilla.redhat.com/show_bug.cgi?id=1519778
bugzilla.redhat.com/show_bug.cgi?id=1519780
bugzilla.redhat.com/show_bug.cgi?id=1519781
github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b
usn.ubuntu.com/3698-1/
usn.ubuntu.com/3698-2/
Related
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C