Race condition in Zstandard
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-11922 |
| CWE-ID | CWE-362 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Zstandard Universal components / Libraries / Libraries used by multiple products |
| Vendor | Facebook Inc. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Race condition
EUVDB-ID: #VU20060
Risk: Medium
CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2019-11922
Exploit availability: No
DescriptionThe vulnerability allows an attacker to execute arbitrary code on the target system.
The vulnerability exists due to a race condition in the one-pass compression functions. A remote attacker can exploit the race and write bytes out of bounds if an output buffer smaller than the recommended size was used.
Successful exploitation of the vulnerability may allow an attacker to execute arbitrary code on the target system.
Install updates from vendor's website.
Vulnerable software versionsZstandard: 1.3.0 - 1.3.7
CPE2.3 External linkshttps://github.com/facebook/zstd/pull/1404/commits/3e5cdf1b6a85843e991d7d10f6a2567c15580da0
https://www.facebook.com/security/advisories/cve-2019-11922
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
