CVE-2021-3424
published 2021-06-01CVE-2021-3424: A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a…
PriorityP427medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.77%
51.4th percentile
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux_kernel | >= 0 < 4.15.0-208.220 | 4.15.0-208.220 |
| redhat | single_sign-on | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
osv5.5MEDIUM
vendor_redhat5.3MEDIUM
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Red Hat
keycloak: Internationalized domain name (IDN) homograph attack to impersonate users
vendor_redhat·2021-03-08·CVSS 5.3
CVE-2021-3424 [MEDIUM] CWE-287 keycloak: Internationalized domain name (IDN) homograph attack to impersonate users
keycloak: Internationalized domain name (IDN) homograph attack to impersonate users
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.
A flaw was found in keycloak, where IDN homograph attacks are possible. This flaw allows a malicious user to register a name that already exists and then tricking an admin to grant extra privileges. The highest threat from this vulnerability is to integrity.
Package: keycloak (Red Hat Decision Manager 7) - Not affected
Package: keycloak (Red Hat Fuse 7) - Not affected
Package: keycloak (Red Hat Integration Camel K 1) - Not affected
Package: keycloak (Red Hat OpenShift Applicati
OSV
linux-snapdragon vulnerabilities
osv·2023-04-19·CVSS 5.5
CVE-2023-1281 linux-snapdragon vulnerabilities
linux-snapdragon vulnerabilities
It was discovered that the Traffic-Control Index (TCINDEX) implementation
in the Linux kernel contained a use-after-free vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2023-1281)
It was discovered that the System V IPC implementation in the Linux kernel
did not properly handle large shared memory counts. A local attacker could
use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)
It was discovered that a use-after-free vulnerability existed in the SGI
GRU driver in the Linux kernel. A local attacker could possibly use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3424)
Ziming Zhang discovered that the
OSV
linux-gcp vulnerabilities
osv·2023-04-11·CVSS 5.5
CVE-2021-3669 linux-gcp vulnerabilities
linux-gcp vulnerabilities
It was discovered that the System V IPC implementation in the Linux kernel
did not properly handle large shared memory counts. A local attacker could
use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)
It was discovered that a use-after-free vulnerability existed in the SGI
GRU driver in the Linux kernel. A local attacker could possibly use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3424)
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an out-of-bounds write vulnerability. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2022-36280)
Hyunwoo Kim discovered that the DVB Core driver in the Linux kernel did not
pr
OSV
linux-gcp-4.15 vulnerabilities
osv·2023-03-31·CVSS 5.5
CVE-2021-3669 linux-gcp-4.15 vulnerabilities
linux-gcp-4.15 vulnerabilities
It was discovered that the System V IPC implementation in the Linux kernel
did not properly handle large shared memory counts. A local attacker could
use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)
It was discovered that a use-after-free vulnerability existed in the SGI
GRU driver in the Linux kernel. A local attacker could possibly use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3424)
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an out-of-bounds write vulnerability. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2022-36280)
Hyunwoo Kim discovered that the DVB Core driver in the Linux kernel did n
OSV
linux, linux-aws, linux-dell300x, linux-kvm, linux-oracle, linux-raspi2 vulnerabilities
osv·2023-03-29·CVSS 5.5
CVE-2021-3669 linux, linux-aws, linux-dell300x, linux-kvm, linux-oracle, linux-raspi2 vulnerabilities
linux, linux-aws, linux-dell300x, linux-kvm, linux-oracle, linux-raspi2 vulnerabilities
It was discovered that the System V IPC implementation in the Linux kernel
did not properly handle large shared memory counts. A local attacker could
use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)
It was discovered that a use-after-free vulnerability existed in the SGI
GRU driver in the Linux kernel. A local attacker could possibly use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3424)
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an out-of-bounds write vulnerability. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2022-36280)
Hyunwoo Kim disc
OSV
linux-aws-hwe, linux-hwe, linux-oracle vulnerabilities
osv·2023-03-28·CVSS 5.5
CVE-2021-3669 linux-aws-hwe, linux-hwe, linux-oracle vulnerabilities
linux-aws-hwe, linux-hwe, linux-oracle vulnerabilities
It was discovered that the System V IPC implementation in the Linux kernel
did not properly handle large shared memory counts. A local attacker could
use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)
It was discovered that a use-after-free vulnerability existed in the SGI
GRU driver in the Linux kernel. A local attacker could possibly use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3424)
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an out-of-bounds write vulnerability. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2022-36280)
Hyunwoo Kim discovered that the DVB Core driver i
GHSA
Keycloak is vulnerable to IDN homograph attack
ghsa·2022-04-28
CVE-2021-3424 [MEDIUM] CWE-287 Keycloak is vulnerable to IDN homograph attack
Keycloak is vulnerable to IDN homograph attack
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.
OSV
Keycloak is vulnerable to IDN homograph attack
osv·2022-04-28
CVE-2021-3424 [MEDIUM] Keycloak is vulnerable to IDN homograph attack
Keycloak is vulnerable to IDN homograph attack
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-06-01
Published