CVE-2020-36691
published 2023-03-24CVE-2020-36691: An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink…
PriorityP415medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.25%
16.4th percentile
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.8.7-1 (bookworm) | linux 5.8.7-1 (bookworm) |
| linux | linux_kernel | < 5.8 | 5.8 |
| linux | linux_kernel | >= 0 < 5.8.7-1 | 5.8.7-1 |
| linux | linux_kernel | >= 0 < 5.8.7-1 | 5.8.7-1 |
| linux | linux_kernel | >= 0 < 5.8.7-1 | 5.8.7-1 |
| linux | linux_kernel | >= 0 < 5.8.7-1 | 5.8.7-1 |
| linux | linux_kernel | >= 0 < 5.4.0-156.173 | 5.4.0-156.173 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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OSV
linux-azure-5.4 vulnerabilities
osv·2023-09-04·CVSS 5.5
CVE-2020-36691 [MEDIUM] linux-azure-5.4 vulnerabilities
linux-azure-5.4 vulnerabilities
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 file system image that, when mounted, could
cause a denial of service (
OSV
linux-azure vulnerabilities
osv·2023-08-31·CVSS 5.5
CVE-2020-36691 [MEDIUM] linux-azure vulnerabilities
linux-azure vulnerabilities
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 file system image that, when mounted, could
cause a denial of service (syst
OSV
linux-bluefield, linux-ibm vulnerabilities
osv·2023-08-29·CVSS 5.5
CVE-2020-36691 [MEDIUM] linux-bluefield, linux-ibm vulnerabilities
linux-bluefield, linux-ibm vulnerabilities
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 file system image that, when mounted, could
cause a denial o
OSV
linux-gke, linux-ibm-5.4 vulnerabilities
osv·2023-08-28·CVSS 5.5
CVE-2020-36691 [MEDIUM] linux-gke, linux-ibm-5.4 vulnerabilities
linux-gke, linux-ibm-5.4 vulnerabilities
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 file system image that, when mounted, could
cause a denial of
OSV
linux-hwe-5.4, linux-xilinx-zynqmp vulnerabilities
osv·2023-08-17·CVSS 5.5
CVE-2020-36691 [MEDIUM] linux-hwe-5.4, linux-xilinx-zynqmp vulnerabilities
linux-hwe-5.4, linux-xilinx-zynqmp vulnerabilities
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 file system image that, when mounted, could
cause a
OSV
linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
osv·2023-08-11·CVSS 5.5
CVE-2020-36691 [MEDIUM] linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vuln
GHSA
GHSA-m5p2-59ff-782g: An issue was discovered in the Linux kernel before 5
ghsa_unreviewed·2023-03-24
CVE-2020-36691 [MEDIUM] CWE-674 GHSA-m5p2-59ff-782g: An issue was discovered in the Linux kernel before 5
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference.
OSV
CVE-2020-36691: An issue was discovered in the Linux kernel before 5
osv·2023-03-24·CVSS 5.5
CVE-2020-36691 [MEDIUM] CVE-2020-36691: An issue was discovered in the Linux kernel before 5
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference.
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2023-09-04·CVSS 5.5
CVE-2022-27672 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a maliciou
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2023-08-31·CVSS 5.5
CVE-2023-2124 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a maliciou
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2023-08-29·CVSS 5.5
CVE-2022-0168 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 f
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2023-08-28·CVSS 5.5
CVE-2023-2124 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 f
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2023-08-17·CVSS 5.5
CVE-2023-1990 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the netlink implementation in the Linux kernel did
not properly validate policies when parsing attributes in some situations.
An attacker could use this to cause a denial of service (infinite
recursion). (CVE-2020-36691)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl() in some situations. A local attacker could possibly use this to
cause a denial of service (system crash). (CVE-2022-0168)
It was discovered that the ext4 file system implementation in the Linux
kernel contained a use-after-free vulnerability. An attacker could use this
to construct a malicious ext4 f
Red Hat
kernel: lib/nlattr.c allows attackers to cause a denial of service
vendor_redhat·2020-04-30·CVSS 5.5
CVE-2020-36691 [MEDIUM] CWE-674 kernel: lib/nlattr.c allows attackers to cause a denial of service
kernel: lib/nlattr.c allows attackers to cause a denial of service
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference.
A flaw was found in lib/nlattr.c in the Linux kernel, before 5.8. This issue may allow an attacker to cause a denial of service (unbounded recursion) through a nested Netlink policy with a back reference.
Statement: The affected code was not introduced into any kernel versions shipped with Red Hat Enterprise Linux; This vulnerability is not applicable to these platforms.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux
Debian
CVE-2020-36691: linux - An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows atta...
vendor_debian·2020·CVSS 5.5
CVE-2020-36691 [MEDIUM] CVE-2020-36691: linux - An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows atta...
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference.
Scope: local
bookworm: resolved (fixed in 5.8.7-1)
bullseye: resolved (fixed in 5.8.7-1)
forky: resolved (fixed in 5.8.7-1)
sid: resolved (fixed in 5.8.7-1)
trixie: resolved (fixed in 5.8.7-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-03-24
Published