CVE-2020-25670: Use After Free
First published: Wed May 26 2021(Updated: )
A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.6<4.4.267 | |
| Linux Kernel | >=4.5<4.9.267 | |
| Linux Kernel | >=4.10<4.14.231 | |
| Linux Kernel | >=4.15<4.19.187 | |
| Linux Kernel | >=4.20<5.4.112 | |
| Linux Kernel | >=5.5<5.10.30 | |
| Linux Kernel | >=5.11<5.11.14 | |
| Fedora | =32 | |
| Fedora | =33 | |
| Fedora | =34 | |
| NetApp Active IQ Unified Manager | ||
| NetApp Cloud Backup | ||
| All of | ||
| NetApp SolidFire Baseboard Management Controller Firmware | ||
| NetApp SolidFire | ||
| All of | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| All of | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| All of | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700S | ||
| NetApp H700S | ||
| All of | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| All of | ||
| NetApp H500E | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700E | ||
| NetApp H700E | ||
| All of | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| Debian | =9.0 | |
| NetApp SolidFire Baseboard Management Controller Firmware | ||
| NetApp SolidFire | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| NetApp H700S | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| NetApp H500E | ||
| NetApp H500e Firmware | ||
| NetApp H700E | ||
| NetApp H700E | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.17-1 |
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Reference Links
- https://www.openwall.com/lists/oss-security/2020/11/01/1
- 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/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- http://www.openwall.com/lists/oss-security/2020/11/01/1
- http://www.openwall.com/lists/oss-security/2021/05/11/4
- https://security.netapp.com/advisory/ntap-20210702-0008/
- https://launchpad.net/bugs/cve/CVE-2020-25670
- https://security-tracker.debian.org/tracker/CVE-2020-25670
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25670
- https://nvd.nist.gov/vuln/detail/CVE-2020-25670
- https://ubuntu.com/security/CVE-2020-25670
Frequently Asked Questions
What is the severity of CVE-2020-25670?
CVE-2020-25670 is classified as a high severity vulnerability due to its potential for privilege escalation.
How do I fix CVE-2020-25670?
To mitigate CVE-2020-25670, update the Linux kernel to version 5.10.223-1 or later.
What systems are affected by CVE-2020-25670?
CVE-2020-25670 affects multiple versions of the Linux Kernel from 3.6 to 5.11, along with specific releases of Fedora and Debian Linux.
What type of vulnerability is CVE-2020-25670?
CVE-2020-25670 is a refcount leak vulnerability that leads to a use-after-free condition.
Is there any known exploit for CVE-2020-25670?
While there may not be a public exploit, the vulnerability's nature allows for potential privilege escalation when exploited.
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- canonical/netapp solidfire
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