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
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27 Oct 2025, 17:06
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| References | () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22555 - US Government Resource |
22 Oct 2025, 00:17
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21 Oct 2025, 20:18
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21 Oct 2025, 19:18
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07 Oct 2025, 13:45
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| CPE | cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:c400:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:solidfire_baseboard_management_controller:*:*:*:*:*:*:*:* cpe:2.3:o:netapp:c400_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:c250_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:c250:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* |
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| First Time |
Netapp c250
Netapp h300s Netapp solidfire Baseboard Management Controller Netapp h410s Firmware Netapp c250 Firmware Netapp h500s Firmware Netapp h410c Firmware Netapp cloud Backup Netapp c400 Firmware Netapp h700s Netapp h700s Firmware Netapp c400 Netapp h500s Netapp h410s Netapp h410c Netapp h300s Firmware |
21 Nov 2024, 05:50
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| References | () http://packetstormsecurity.com/files/163528/Linux-Kernel-Netfilter-Heap-Out-Of-Bounds-Write.html - Third Party Advisory, VDB Entry | |
| References | () http://packetstormsecurity.com/files/163878/Kernel-Live-Patch-Security-Notice-LSN-0080-1.html - Exploit, Third Party Advisory, VDB Entry | |
| References | () http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html - Exploit, Third Party Advisory, VDB Entry | |
| References | () http://packetstormsecurity.com/files/164437/Netfilter-x_tables-Heap-Out-Of-Bounds-Write-Privilege-Escalation.html - Exploit, Third Party Advisory, VDB Entry | |
| References | () http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html - Exploit, Third Party Advisory, VDB Entry | |
| References | () 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 | |
| References | () 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 | |
| References | () https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528 - Exploit, Third Party Advisory | |
| References | () https://security.netapp.com/advisory/ntap-20210805-0010/ - Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : 4.6
v3 : 8.3 |
Published : 2021-07-07 12:15
Updated : 2025-10-27 17:06
NVD link : CVE-2021-22555
Mitre link : CVE-2021-22555
CVE.ORG link : CVE-2021-22555
JSON object : View
- c250_firmware
- h700s
- fas_8700
- h610s_firmware
- aff_500f
- h300s_firmware
- solidfire_baseboard_management_controller
- aff_500f_firmware
- h410c
- c400
- h610c
- h410c_firmware
- h410s
- h615c
- h500s_firmware
- h610c_firmware
- fas_8300_firmware
- aff_a250
- fas_8300
- c250
- h300s
- aff_a250_firmware
- hci_management_node
- h615c_firmware
- h610s
- aff_a400_firmware
- aff_a400
- h410s_firmware
- fas_8700_firmware
- h700s_firmware
- cloud_backup
- solidfire
- c400_firmware
- h500s
Out-of-bounds Write