Out-of-bounds Read in Linux Kernel
CVE-2022-2785
There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c
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: 0.003 (16.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.7% 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
- Linux Kernel — versions 5.14, 5.18
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.kernel.org/bpf/bpf/c/86f44fcec22c (Patch, Vendor Advisory)
- lore.kernel.org/bpf/20220816205517.682470-1-zhuyifei@google.com/T/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-2785?
- CVE-2022-2785 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 6.7/10. Published 2022-09-23.
- How severe is CVE-2022-2785?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2022-2785 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.