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…

Description

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.

Scores

EPSS (exploitation in 30 days)

1.4% · top 27% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.

Weakness

• Out-of-bounds Write (CWE-ID 787)
• CWE-362 (opens in a new tab)All about CWE-362 and its CVEs

Affected products

• Facebook · Zstandard

  • affected 1.3.8
  • affected unspecified – < 1.3.8

References (7)

• openSUSE-SU-2019:1845 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• openSUSE-SU-2019:1952 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-4108-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• openSUSE-SU-2019:2008 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://www.oracle.com/security-alerts/cpuoct2020.html (opens in a new tab)x_refsource_MISCx_transferred
• https://www.facebook.com/security/advisories/cve-2019-11922 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://github.com/facebook/zstd/pull/1404/commits/3e5cdf1b6a85843e991d7d10f6a2567c15580da0 (opens in a new tab)x_refsource_MISCx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2019-11922](https://trackcve.app/badge/CVE-2019-11922.svg)](https://trackcve.app/cve/CVE-2019-11922)

Record last updated 4 Aug 2024, 23:10 UTC.