Information disclosure in Linux Kernel
CVE-2017-17864
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel
- Debian Linux — versions 9.0
Weakness classification (CWE)
References
- anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-ver… (Third Party Advisory)
- anonscm.debian.org/cgit/kernel/linux.git/commit/ (Third Party Advisory)
- www.securitytracker.com/id/1040059 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/102320 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2017/dsa-4073 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/usn/usn-3523-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2017-17864?
- CVE-2017-17864 is a low-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 3.3/10. Published 2017-12-27.
- How severe is CVE-2017-17864?
- Low severity. CVSS v3 base score is 3.3 out of 10.