CVE-2020-25671: Use After Free
First published: Wed May 26 2021(Updated: )
A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 | |
| 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 vsphere | ||
| netapp cloud backup | ||
| All of | ||
| netapp solidfire baseboard management controller firmware | ||
| netapp solidfire baseboard management controller | ||
| All of | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| All of | ||
| netapp h300s firmware | ||
| netapp h300s | ||
| All of | ||
| NetApp H500S Firmware | ||
| netapp h500s | ||
| All of | ||
| netapp h700s firmware | ||
| netapp h700s | ||
| All of | ||
| netapp h300e firmware | ||
| netapp h300e | ||
| All of | ||
| netapp h500e firmware | ||
| netapp h500e | ||
| All of | ||
| netapp h700e firmware | ||
| netapp h700e | ||
| All of | ||
| netapp h410s firmware | ||
| netapp h410s | ||
| Debian | =9.0 | |
| netapp solidfire baseboard management controller firmware | ||
| netapp solidfire baseboard management controller | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| netapp h300s firmware | ||
| netapp h300s | ||
| NetApp H500S Firmware | ||
| netapp h500s | ||
| netapp h700s firmware | ||
| netapp h700s | ||
| netapp h300e firmware | ||
| netapp h300e | ||
| netapp h500e firmware | ||
| netapp h500e | ||
| netapp h700e firmware | ||
| netapp h700e | ||
| netapp h410s firmware | ||
| netapp h410s |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
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
- https://security.netapp.com/advisory/ntap-20210702-0008/
- https://launchpad.net/bugs/cve/CVE-2020-25671
- https://security-tracker.debian.org/tracker/CVE-2020-25671
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25671
- https://nvd.nist.gov/vuln/detail/CVE-2020-25671
- https://ubuntu.com/security/CVE-2020-25671
Frequently Asked Questions
What is the severity of CVE-2020-25671?
CVE-2020-25671 is considered a high severity vulnerability due to its potential to allow privilege escalation.
How do I fix CVE-2020-25671?
To fix CVE-2020-25671, users should upgrade to patched versions of the Linux Kernel, such as 5.10.223-1 or later.
What causes CVE-2020-25671?
CVE-2020-25671 is caused by a refcount leak in the llcp_sock_connect() function, leading to a use-after-free condition.
Which Linux Kernel versions are affected by CVE-2020-25671?
CVE-2020-25671 affects Linux Kernel versions from 3.6 to 4.4.267, 4.5 to 4.9.267, 4.10 to 4.14.231, 4.15 to 4.19.187, 4.20 to 5.4.112, and 5.5 to 5.11.14.
Is CVE-2020-25671 a known vulnerability for Fedora?
Yes, CVE-2020-25671 is a known vulnerability that affects specific versions of Fedora, specifically Fedora 32, 33, and 34.
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/references
- agent/first-publish-date
- agent/last-modified-date
- agent/trending
- agent/source
- agent/author
- agent/tags
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- agent/softwarecombine
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- package-manager/debian
- vendor/linux
- canonical/linux kernel
- version/linux kernel/3.6
- version/linux kernel/4.5
- version/linux kernel/4.10
- version/linux kernel/4.15
- version/linux kernel/4.20
- version/linux kernel/5.5
- version/linux kernel/5.11
- vendor/fedoraproject
- canonical/fedora
- version/fedora/32
- version/fedora/33
- version/fedora/34
- vendor/netapp
- canonical/netapp active iq unified manager vsphere
- canonical/netapp cloud backup
- canonical/netapp solidfire baseboard management controller firmware
- canonical/netapp solidfire baseboard management controller
- canonical/netapp h410c firmware
- canonical/netapp h410c
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h300e firmware
- canonical/netapp h300e
- canonical/netapp h500e firmware
- canonical/netapp h500e
- canonical/netapp h700e firmware
- canonical/netapp h700e
- canonical/netapp h410s firmware
- canonical/netapp h410s
- vendor/debian
- canonical/debian
- version/debian/9.0