CyberSecurityBoard
Sponsor Register Login

CVE-2021-47363

In the Linux kernel, the following vulnerability has been resolved: nexthop: Fix division by zero while replacing a resilient group The resilient nexthop group torture tests in fib_nexthop.sh exposed a possible division by zero while replacing a resilient group [1]. The division by zero occurs when the data path sees a resilient nexthop group with zero buckets. The tests replace a resilient nexthop group in a loop while traffic is forwarded through it. The tests do not specify the number of buckets while performing the replacement, resulting in the kernel allocating a stub resilient table (i.e, 'struct nh_res_table') with zero buckets. This table should never be visible to the data path, but the old nexthop group (i.e., 'oldg') might still be used by the data path when the stub table is assigned to it. Fix this by only assigning the stub table to the old nexthop group after making sure the group is no longer used by the data path. Tested with fib_nexthops.sh: Tests passed: 222 Tests failed: 0 [1] divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1850 Comm: ping Not tainted 5.14.0-custom-10271-ga86eb53057fe #1107 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014 RIP: 0010:nexthop_select_path+0x2d2/0x1a80 [...] Call Trace: fib_select_multipath+0x79b/0x1530 fib_select_path+0x8fb/0x1c10 ip_route_output_key_hash_rcu+0x1198/0x2da0 ip_route_output_key_hash+0x190/0x340 ip_route_output_flow+0x21/0x120 raw_sendmsg+0x91d/0x2e10 inet_sendmsg+0x9e/0xe0 __sys_sendto+0x23d/0x360 __x64_sys_sendto+0xe1/0x1b0 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae

This Cyber News was published on www.tenable.com. Publication date: Wed, 22 May 2024 10:56:03 +0000


Cyber News related to CVE-2021-47363

CVE-2021-28352 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28346 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28358 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28334 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28335, CVE-2021-28336, CVE-2021-28337, ...
3 years ago
CVE-2021-28341 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28332 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, CVE-2021-28337, ...
3 years ago
CVE-2021-28335 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28336, CVE-2021-28337, ...
3 years ago
CVE-2021-46976 - In the Linux kernel, the following vulnerability has been resolved: ...
4 months ago
CVE-2021-47363 - In the Linux kernel, the following vulnerability has been resolved: nexthop: Fix division by zero while replacing a resilient group The resilient nexthop group torture tests in fib_nexthop.sh exposed a possible division by zero while replacing a ...
1 month ago Tenable.com
CVE-2007-6654 - Buffer overflow in a certain ActiveX control in Macrovision InstallShield Update Service Web Agent 5.1.100.47363 allows remote attackers to execute arbitrary code via a long string in the ProductCode argument (second argument) to the ...
6 years ago
CVE-2022-47363 - In wlan driver, there is a possible out of bounds read due to a missing bounds check. This could lead to local denial of service in wlan services. ...
1 year ago
CVE-2023-47363 - The leakage of channel access token in F.B.P members Line 13.6.1 allows remote attackers to send malicious notifications to victims. ...
6 months ago
CVE-2021-45977 - JetBrains IntelliJ IDEA 2021.3.1 Preview, IntelliJ IDEA 2021.3.1 RC, PyCharm Professional 2021.3.1 RC, GoLand 2021.3.1, PhpStorm 2021.3.1 Preview, PhpStorm 2021.3.1 RC, RubyMine 2021.3.1 Preview, RubyMine 2021.3.1 RC, CLion 2021.3.1, WebStorm ...
2 years ago
CVE-2021-45511 - Certain NETGEAR devices are affected by authentication bypass. This affects AC2100 before 2021-08-27, AC2400 before 2021-08-27, AC2600 before 2021-08-27, D7000 before 2021-08-27, R6220 before 2021-08-27, R6230 before 2021-08-27, R6260 before ...
1 year ago
Vulnerability Summary for the Week of March 11, 2024 - Published 2024-03-15 CVSS Score not yet calculated Source & Patch Info CVE-2021-47111416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67 PrimaryVendor - Product linux - linux Description In the ...
3 months ago Cisa.gov
CVE-2021-47130 - In the Linux kernel, the following vulnerability has been resolved: ...
3 months ago
SecurityWeek Analysis: Over 450 Cybersecurity M&A Deals Announced in 2022 - MSSPs took the lead in cybersecurity M&A in 2022 with twice as many deals as in 2021. An analysis conducted by SecurityWeek shows that more than 450 cybersecurity-related mergers and acquisitions were announced in 2022. In 2022, we tracked a total of ...
1 year ago Securityweek.com
CVE-2021-26902 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-24110 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-24089 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-27051 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-27061 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27062. ...
3 years ago
CVE-2021-27062 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061. ...
3 years ago
CVE-2021-27049 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-27047 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago

Latest Cyber News


Cyber Trends (last 7 days)


Trending Cyber News (last 7 days)