Vulnerability in Facebook Zstandard
CVE-2019-11922
A race condition in the one-pass compression functions of Zstandard prior to version 1.3.8 could allow an attacker to write bytes out of bounds if an output buffer smaller than the recommended size was used.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: -0.000
Affected products
- Facebook Zstandard — versions 1.3.8, unspecified
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00008.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00062.html (vendor-advisory)
- usn.ubuntu.com/4108-1/ (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00078.html (vendor-advisory)
- www.oracle.com/security-alerts/cpuoct2020.html
- www.facebook.com/security/advisories/cve-2019-11922 (Vendor Advisory)
- github.com/facebook/zstd/pull/1404/commits/3e5cdf1b6a85843e991d7d10f6a2567c1558… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-11922?
- CVE-2019-11922 is a high-severity vulnerability in Facebook Zstandard, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.1/10. Published 2019-07-25.
- How severe is CVE-2019-11922?
- High severity. CVSS v3 base score is 8.1 out of 10.