Medium severity · published Dec 4, 2024
CVE-2018-9439
In __unregister_prot_hook and packet_release of af_packet.c, there is a possible use-after-free due to improper locking
6.7
CVSS
0.1%
EPSS
No
On KEV
Description
In __unregister_prot_hook and packet_release of af_packet.c, there is a
possible use-after-free due to improper locking. This could lead to local
escalation of privilege in the kernel with System execution privileges
needed. User interaction is not needed for exploitation.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 0% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Android · Google
Kernel · source: vendor, NVD, CISA
PI
Pixel · Google
before 2018-08-05 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-9439
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-9439
Vendor Advisory
https://source.android.com/security/bulletin/pixel/2018-08-01
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