CVE-2021-22555

CVSS V2 Medium 4.6 CVSS V3 High 7.8
Description
A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space
Overview
  • CVE ID
  • CVE-2021-22555
  • Assigner
  • cve-coordination@google.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-07T12:15:08
  • Last Modified Date
  • 2022-03-31T19:15:32
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 2.6.19 4.4.267
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.5 4.9.267
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.10 4.14.231
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.15 4.19.188
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.20 5.4.113
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.5 5.10.31
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.11 5.12
AND
cpe:2.3:o:brocade:fabric_operating_system:-:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:fas_8300_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:fas_8300:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:fas_8700_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:fas_8700:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:aff_a400:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:aff_a250_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:aff_a250:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:aff_500f_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:aff_500f:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.6
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=b29c457a6511435960115c0f548c4360d5f4801d Mailing List Patch Vendor Advisory
https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528 Exploit Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=9fa492cdc160cd27ce1046cb36f47d3b2b1efa21 Mailing List Patch Vendor Advisory
http://packetstormsecurity.com/files/163528/Linux-Kernel-Netfilter-Heap-Out-Of-Bounds-Write.html Third Party Advisory VDB Entry
https://security.netapp.com/advisory/ntap-20210805-0010/ Third Party Advisory
http://packetstormsecurity.com/files/163878/Kernel-Live-Patch-Security-Notice-LSN-0080-1.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164437/Netfilter-x_tables-Heap-Out-Of-Bounds-Write-Privilege-Escalation.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html Exploit Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-22555
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22555
History
Created Old Value New Value Data Type Notes
2022-04-04 00:39:20 Added to TrackCVE
2022-12-05 05:28:54 security@google.com cve-coordination@google.com CVE Assigner updated
2022-12-05 05:28:54 2021-07-07T12:15Z 2021-07-07T12:15:08 CVE Published Date updated
2022-12-05 05:28:54 2022-03-31T19:15:32 CVE Modified Date updated
2022-12-05 05:28:54 Analyzed Vulnerability Status updated