Buffer overflow in Node.js Node
CVE-2020-8252
The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.
Vulnerability class: Buffer Overflow
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: 0.007 (51.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.8% 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
- Node.js Node — versions 4.0, 5.0, 6.0
- Node.js
- Fedoraproject Fedora — versions 33
- openSUSE Leap — versions 15.2
Weakness classification (CWE)
References
- nodejs.org/en/blog/vulnerability/september-2020-security-releases/ (Vendor Advisory)
- hackerone.com/reports/965914 (Permissions Required, Third Party Advisory)
- security.gentoo.org/glsa/202009-15 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4548-1/ (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20201009-0004/ (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-8252?
- CVE-2020-8252 is a high-severity vulnerability in Node.js Node, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2020-09-18.
- How severe is CVE-2020-8252?
- High severity. CVSS v3 base score is 7.8 out of 10.