Buffer overflow in Linux Kernel
CVE-2023-28772
An issue was discovered in the Linux kernel before 5.13.3. lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 (Release Notes, Vendor Advisory)
- github.com/torvalds/linux/commit/d3b16034a24a112bb83aeb669ac5b9b01f744bb7 (Patch, Vendor Advisory)
- lore.kernel.org/lkml/20210625122453.5e2fe304@oasis.local.home/
- lkml.kernel.org/r/20210626032156.47889-1-yun.zhou@windriver.com
- security.netapp.com/advisory/ntap-20230427-0005/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-28772?
- CVE-2023-28772 is a medium-severity vulnerability in Linux Kernel, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2023-03-23.
- How severe is CVE-2023-28772?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2023-28772 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.