CVE-2021-33909

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-33909
fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2 /10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2021/07/22/7 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/25/10 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/21/1 Mailing List Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Mailing List Patch Vendor Advisory
https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210819-0004/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4941 Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/07/20/1 Exploit Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2021/07/22/7 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/25/10 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/21/1 Mailing List Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Mailing List Patch Vendor Advisory
https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210819-0004/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4941 Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/07/20/1 Exploit Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*

Configuration 5 (hide)

OR cpe:2.3:a:oracle:communications_session_border_controller:8.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_session_border_controller:8.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_session_border_controller:8.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_session_border_controller:9.0:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:sonicwall:sma1000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:sma1000:-:*:*:*:*:*:*:*
History

21 Nov 2024, 06:09

Type Values Removed Values Added
References () http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html - Exploit, Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html - Exploit, Third Party Advisory, VDB Entry
References () http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html - Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html - Third Party Advisory, VDB Entry
References () http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html - Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html - Third Party Advisory, VDB Entry
References () http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html - Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html - Third Party Advisory, VDB Entry
References () http://www.openwall.com/lists/oss-security/2021/07/22/7 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2021/07/22/7 - Mailing List, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2021/08/25/10 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2021/08/25/10 - Mailing List, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2021/09/17/2 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2021/09/17/2 - Mailing List, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2021/09/17/4 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2021/09/17/4 - Mailing List, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2021/09/21/1 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2021/09/21/1 - Mailing List, Third Party Advisory
References () https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 - Mailing List, Patch, Vendor Advisory () https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 - Mailing List, Patch, Vendor Advisory
References () https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b - Patch, Third Party Advisory () https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b - Patch, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/ -
References () https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015 - Third Party Advisory () https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015 - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20210819-0004/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20210819-0004/ - Third Party Advisory
References () https://www.debian.org/security/2021/dsa-4941 - Third Party Advisory () https://www.debian.org/security/2021/dsa-4941 - Third Party Advisory
References () https://www.openwall.com/lists/oss-security/2021/07/20/1 - Exploit, Mailing List, Third Party Advisory () https://www.openwall.com/lists/oss-security/2021/07/20/1 - Exploit, Mailing List, Third Party Advisory
References () https://www.oracle.com/security-alerts/cpujan2022.html - Patch, Third Party Advisory () https://www.oracle.com/security-alerts/cpujan2022.html - Patch, Third Party Advisory

07 Nov 2023, 03:35

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/', 'name': 'FEDORA-2021-07dc0b3eb1', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/ -
Information

Published : 2021-07-20 19:15

Updated : 2024-11-21 06:09

NVD link : CVE-2021-33909

Mitre link : CVE-2021-33909

CVE.ORG link : CVE-2021-33909

JSON object : View

Products Affected

sonicwall

  • sma1000
  • sma1000_firmware

oracle

  • communications_session_border_controller

netapp

  • solidfire
  • hci_management_node

fedoraproject

  • fedora

linux

  • linux_kernel

debian

  • debian_linux
CWE
CWE-190

Integer Overflow or Wraparound

CWE-787

Out-of-bounds Write