What’s Vulnerable › Vulnerabilities
CVE-2020-25673
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-05-26 · updated 2026-06-17
- Weakness: CWE-400
Description
A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak and eventually hanging-up the system.
Affected products
- Fedoraproject Fedora: 32, 33, 34
- Linux kernel: before 5.3.18 — fixed in 5.3.18
- Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
- NetApp Cloud Backup: all versions
- NetApp H300E Firmware: all versions
- NetApp H300S Firmware: all versions
- NetApp H410C Firmware: all versions
- NetApp H410S Firmware: all versions
- NetApp H500E Firmware: all versions
- NetApp H500S Firmware: all versions
- NetApp H700E Firmware: all versions
- NetApp H700S Firmware: all versions
- NetApp Solidfire Baseboard Management Controller Firmware: all versions
How to fix
Upgrade to a fixed version: Linux kernel 5.3.18. Check the vendor advisory for mitigations.
References
- http://www.openwall.com/lists/oss-security/2020/11/01/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/
- https://security.netapp.com/advisory/ntap-20210702-0008/
- https://www.openwall.com/lists/oss-security/2020/11/01/1
- http://www.openwall.com/lists/oss-security/2020/11/01/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/
- https://security.netapp.com/advisory/ntap-20210702-0008/
- https://www.openwall.com/lists/oss-security/2020/11/01/1
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