Medium severity · published Jul 25, 2023
CVE-2023-3772
Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()
4.4
CVSS
0.5%
EPSS
No
On KEV
Description
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
All versions, or not specified · source: NVD
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.6 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.8 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
DL
Debian Linux · Debian
10.0; 12.0 · source: NVD
EL
Enterprise Linux · Redhat
8.0; 9.0 · source: NVD
EL
Enterprise Linux For Real Time · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Real Time For Nfv · Redhat
8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3772
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3772
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:6583
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:6901
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7077
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0412
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0575
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-3772
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