Double Free in Linux Kernel
CVE-2023-28464
hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux kernel through 6.2.9 has a use-after-free (observed in hci_conn_hash_flush) because of calls to hci_dev_put and hci_conn_put. There is a double free that may lead to privilege escalation.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (17.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
- Linux Kernel — versions 6.1.25, 6.2.12, 6.3
- NetApp H300s Firmware
- NetApp H410c Firmware
- NetApp H410s Firmware
- NetApp H500s Firmware
- NetApp H700s Firmware
Weakness classification (CWE)
References
- lore.kernel.org/lkml/20230309074645.74309-1-wzhmmmmm@gmail.com/ (Patch, Mailing List)
- www.openwall.com/lists/oss-security/2023/03/28/2 (Patch, Mailing List)
- www.openwall.com/lists/oss-security/2023/03/28/3 (Mailing List)
- security.netapp.com/advisory/ntap-20230517-0004/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-28464?
- CVE-2023-28464 is a high-severity vulnerability in Linux Kernel, classified under Double Free. CVSS score: 7.8/10. Published 2023-03-31.
- How severe is CVE-2023-28464?
- High severity. CVSS v3 base score is 7.8 out of 10.