Buffer overflow in Linux Linux_kernel
CVE-2021-42008
The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.
Vulnerability class: Buffer Overflow
EPSS: 0.015 (70.7th percentile) — read the EPSS interpretation.
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.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42008?
- CVE-2021-42008 is a high-severity vulnerability in Linux Linux_kernel, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-10-05.
- How severe is CVE-2021-42008?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-42008 known to be exploited?
- 36 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.