CVE-2020-27815: Buffer Overflow
First published: Wed May 26 2021(Updated: )
A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >4.4.249 | |
| Linux Kernel | >=4.5<4.9.249 | |
| Linux Kernel | >=4.10<4.14.213 | |
| Linux Kernel | >=4.15<4.19.164 | |
| Linux Kernel | >=4.20<5.4.86 | |
| Linux Kernel | >=5.5<5.10.4 | |
| Debian GNU/Linux | =9.0 | |
| Debian GNU/Linux | =10.0 | |
| 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 | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| netapp aff a250 firmware | ||
| netapp aff a250 | ||
| NetApp FAS500F Firmware | ||
| NetApp FAS500F Firmware | ||
| 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 | ||
| All of | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| All of | ||
| netapp aff a250 firmware | ||
| netapp aff a250 | ||
| All of | ||
| NetApp FAS500F Firmware | ||
| NetApp FAS500F Firmware | ||
| 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 |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6c
- https://www.debian.org/security/2021/dsa-4843
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- http://www.openwall.com/lists/oss-security/2020/11/30/5
- http://www.openwall.com/lists/oss-security/2020/12/28/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1897668%2C
- https://security.netapp.com/advisory/ntap-20210702-0004/
- https://www.openwall.com/lists/oss-security/2020/11/30/5%2C
- https://www.openwall.com/lists/oss-security/2020/12/28/1%2C
- https://launchpad.net/bugs/cve/CVE-2020-27815
- https://www.openwall.com/lists/oss-security/2020/11/30/5
- https://security-tracker.debian.org/tracker/CVE-2020-27815
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27815
- https://nvd.nist.gov/vuln/detail/CVE-2020-27815
- https://ubuntu.com/security/CVE-2020-27815
Frequently Asked Questions
What is the severity of CVE-2020-27815?
CVE-2020-27815 has a high severity due to its potential to cause system panics and memory corruption.
How do I fix CVE-2020-27815?
To fix CVE-2020-27815, upgrade to the recommended Linux kernel versions 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, 6.12.11-1, or 6.12.12-1.
Who is affected by CVE-2020-27815?
CVE-2020-27815 affects local users with the ability to set extended attributes on systems running specific vulnerable versions of the Linux kernel.
Can CVE-2020-27815 lead to privilege escalation?
Yes, CVE-2020-27815 can potentially allow local attackers to escalate their privileges on the affected system.
What can an attacker do with CVE-2020-27815?
An attacker exploiting CVE-2020-27815 can cause a system panic, leading to denial of service and possible memory corruption.
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/weakness
- agent/severity
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/remedy
- agent/first-publish-date
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/last-modified-date
- agent/trending
- agent/source
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- collector/nvd-api
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-cve
- source/NVD
- collector/nvd-index
- package-manager/debian
- vendor/linux
- canonical/linux kernel
- 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
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/9.0
- version/debian gnu/linux/10.0
- vendor/netapp
- 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
- canonical/netapp h410c firmware
- canonical/netapp h410c
- canonical/netapp aff a250 firmware
- canonical/netapp aff a250
- canonical/netapp fas500f firmware