Lucene search
K
Database
Vendors
Products
Years
CVSS
Scanner
Agent Scanning
API Scanning
Manual Audit
Perimeter Scanner
Scanning
Projects
Email
Webhook
Plugins
Resources
Documents
Blog
Glossary
FAQ
Pricing
Contacts
About Us
Partners
Branding Guideline
ubuntuUbuntuUSN-4917-1
HistoryApr 15, 2021 - 12:00 a.m.

Linux kernel vulnerabilities

2021-04-1500:00:00
ubuntu.com
120

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.6 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.006 Low

EPSS

Percentile

78.1%

JSON

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-azure-5.4 - Linux kernel for Microsoft Azure cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gcp-5.4 - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gke-5.3 - Linux kernel for Google Container Engine (GKE) systems
  • linux-gke-5.4 - Linux kernel for Google Container Engine (GKE) systems
  • linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
  • linux-gkeop-5.4 - Linux kernel for Google Container Engine (GKE) systems
  • linux-hwe - Linux hardware enablement (HWE) kernel
  • linux-hwe-5.4 - Linux hardware enablement (HWE) kernel
  • linux-hwe-5.8 - Linux hardware enablement (HWE) kernel
  • linux-kvm - Linux kernel for cloud environments
  • linux-oem-5.10 - Linux kernel for OEM systems
  • linux-oracle - Linux kernel for Oracle Cloud systems
  • linux-oracle-5.4 - Linux kernel for Oracle Cloud systems
  • linux-raspi - Linux kernel for Raspberry Pi (V8) systems
  • linux-raspi-5.4 - Linux kernel for Raspberry Pi (V8) systems
  • linux-raspi2-5.3 - Linux kernel for Raspberry Pi (V8) systems

Details

It was discovered that the overlayfs implementation in the Linux kernel did
not properly validate the application of file system capabilities with
respect to user namespaces. A local attacker could use this to gain
elevated privileges. (CVE-2021-3493)

Vincent Dehors discovered that the shiftfs file system in the Ubuntu Linux
kernel did not properly handle faults in copy_from_user() when passing
through ioctls to an underlying file system. A local attacker could use
this to cause a denial of service (memory exhaustion) or execute arbitrary
code. (CVE-2021-3492)

Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux
kernel did not properly validate computation of branch displacements in
some situations. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2021-29154)

Related

nessus 64
osv 10
openvas 39
ubuntu 6
cloudfoundry 1
veracode 3
prion 3
debiancve 3
redhatcve 3
githubexploit 10
metasploit 1
f5 2
packetstorm 1
seebug 1
cve 3
ubuntucve 3
zdi 1
rapid7blog 1
cisa_kev 1
attackerkb 1
photon 8
cbl_mariner 2
malwarebytes 1
thn 2
fedora 1
redhat 7
centos 1
oraclelinux 6
mageia 2
suse 2
amazon 2
ibm 2
debian 2
slackware 1
rocky 2
almalinux 1
nessus
nessus
Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4917-1)
2021-04-16 00:00:00
Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4915-1)
2021-04-16 00:00:00
Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4916-1)
2021-04-16 00:00:00
osv
osv
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.3, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-kvm, linux-oem-5.10, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-raspi2-5.3 vulnerabilities
2021-04-15 23:35:11
linux-oem-5.6 vulnerabilities
2021-04-15 22:22:20
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-lts-xenial, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
2021-04-15 23:26:22
openvas
openvas
Ubuntu: Security Advisory (USN-4917-1)
2021-04-16 00:00:00
Ubuntu: Security Advisory (USN-4915-1)
2021-04-16 00:00:00
Ubuntu: Security Advisory (USN-4916-2)
2021-04-22 00:00:00
ubuntu
ubuntu
Linux kernel (OEM) vulnerabilities
2021-04-15 00:00:00
Kernel Live Patch Security Notice
2021-05-03 00:00:00
Linux kernel regression
2021-04-22 00:00:00
cloudfoundry
cloudfoundry
USN-4916-1: Linux kernel vulnerabilities | Cloud Foundry
2021-04-29 00:00:00
veracode
veracode
Denial Of Service (DoS)
2021-05-24 09:30:39
Privilege Escalation
2021-08-12 15:38:55
Remote Code Execution (RCE)
2021-09-02 00:39:39
prion
prion
Double free
2021-04-17 05:15:00
Design/Logic Flaw
2021-04-17 05:15:00
Design/Logic Flaw
2021-04-08 21:15:00
debiancve
debiancve
CVE-2021-3492
2021-04-17 05:15:00
CVE-2021-3493
2021-04-17 05:15:00
CVE-2021-29154
2021-04-08 21:15:00
redhatcve
redhatcve
CVE-2021-3492
2021-04-16 19:11:58
CVE-2021-3493
2021-04-16 19:11:59
CVE-2021-29154
2021-04-08 20:52:11
githubexploit
githubexploit
Exploit for Improper Privilege Management in Canonical Ubuntu Linux
2021-04-22 02:06:21
Exploit for Incorrect Authorization in Canonical Ubuntu Linux
2022-11-29 12:56:00
Exploit for Incorrect Authorization in Canonical Ubuntu Linux
2022-10-02 19:44:45
metasploit
metasploit
2021 Ubuntu Overlayfs LPE
2021-12-01 20:54:47
f5
f5
K54635192 : Linux kernel overlayfs vulnerability CVE-2021-3493
2021-06-04 00:00:00
K72118410 : Linux kernel vulnerability CVE-2021-29154
2021-06-18 00:00:00
packetstorm
packetstorm
Ubuntu Overlayfs Local Privilege Escalation
2021-12-03 00:00:00
seebug
seebug
ubuntu特权提升漏洞（CVE-2021-3493）
2021-04-20 00:00:00
cve
cve
CVE-2021-3493
2021-04-17 05:15:00
CVE-2021-3492
2021-04-17 05:15:00
CVE-2021-29154
2021-04-08 21:15:00
ubuntucve
ubuntucve
CVE-2021-3493
2021-04-15 00:00:00
CVE-2021-3492
2021-04-15 00:00:00
CVE-2021-29154
2021-04-08 00:00:00
zdi
zdi
(Pwn2Own) Canonical Ubuntu ShiftFS File System Double Free Privilege Escalation Vulnerability
2021-04-21 00:00:00
rapid7blog
rapid7blog
Metasploit Wrap-Up
2021-12-03 21:03:18
cisa_kev
cisa_kev
Linux Kernel Privilege Escalation Vulnerability
2022-10-20 00:00:00
attackerkb
attackerkb
CVE-2021-3493
2021-04-15 00:00:00
photon
photon
Important Photon OS Security Update - PHSA-2021-0011
2021-04-20 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0382
2021-04-19 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0340
2021-04-28 00:00:00
cbl_mariner
cbl_mariner
CVE-2021-29154 affecting package kernel for versions less than 5.10.78.1-1
2022-04-09 06:52:47
CVE-2021-29154 affecting package kernel 5.10.167.1-1
2021-09-09 15:03:26
malwarebytes
malwarebytes
Evasive Shikitega Linux malware drops Monero cryptominer
2022-09-07 22:45:00
thn
thn
New Stealthy Shikitega Malware Targeting Linux Systems and IoT Devices
2022-09-07 12:38:00
GameOver(lay): Two Severe Linux Vulnerabilities Impact 40% of Ubuntu Users
2023-07-27 13:25:00
fedora
fedora
[SECURITY] Fedora 33 Update: kernel-5.11.13-200.fc33
2021-04-14 14:43:50
redhat
redhat
(RHSA-2021:3328) Important: kernel-rt security and bug fix update
2021-08-31 07:45:27
(RHSA-2021:3327) Important: kernel security and bug fix update
2021-08-31 07:45:12
(RHSA-2021:3653) Important: Red Hat Advanced Cluster Management 2.1.11 security fix and container updates
2021-09-23 14:58:27
centos
centos
bpftool, kernel, perf, python security update
2021-08-31 21:19:47
oraclelinux
oraclelinux
Unbreakable Enterprise kernel security update
2021-06-15 00:00:00
Unbreakable Enterprise kernel-container security update
2021-06-15 00:00:00
kernel security and bug fix update
2021-08-31 00:00:00
mageia
mageia
Updated kernel-linus packages fix security vulnerabilities
2021-04-18 17:50:05
Updated kernel packages fix security vulnerabilities
2021-04-18 17:50:05
suse
suse
Security update for the Linux Kernel (important)
2021-04-19 00:00:00
Security update for the Linux Kernel (important)
2021-05-22 00:00:00
amazon
amazon
Low: kernel
2021-05-20 21:12:00
Important: kernel
2021-04-20 17:55:00
ibm
ibm
Security Bulletin: IBM QRadar SIEM is vulnerable to using components with known vulnerabilities
2021-12-03 18:47:00
Security Bulletin: IBM Data Risk Manager is affected by multiple vulnerabilities
2021-10-11 18:12:27
debian
debian
[SECURITY] [DLA 2690-1] linux-4.19 security update
2021-06-23 00:05:25
[SECURITY] [DLA 2689-1] linux security update
2021-06-23 00:12:14
slackware
slackware
[slackware-security] Slackware 14.2 kernel
2021-07-21 05:44:30
rocky
rocky
kernel-rt security and bug fix update
2022-05-10 06:42:36
kernel security, bug fix, and enhancement update
2022-05-10 08:11:36
almalinux
almalinux
Important: kernel security, bug fix, and enhancement update
2022-05-10 08:11:36

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.6 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.006 Low

EPSS

Percentile

78.1%

JSON
Related for USN-4917-1
nessus64osv10openvas39ubuntu6cloudfoundry1veracode3prion3debiancve3redhatcve3githubexploit10metasploit1f52packetstorm1seebug1cve3ubuntucve3zdi1rapid7blog1cisa_kev1attackerkb1photon8cbl_mariner2malwarebytes1thn2fedora1redhat7centos1oraclelinux6mageia2suse2amazon2ibm2debian2slackware1rocky2almalinux1