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PT-2022-4321

🗓️ 09 Aug 2022 00:00:00Reported by Positive TechnologiesType 
ptsecurity
 ptsecurity🔗 dbugs.ptsecurity.com👁 8 Views

Linux kernel route4 change use after free enables local privilege escalation or arbitrary code execution.

Related
Refs
ReporterTitlePublishedViews
Family
bdu_fstec		The vulnerability in the implementation of the VTRESIZEEX function in Linux operating system kernels allows a attacker to cause a service failure. [source-iocs-preserved const=VT_RESIZEX]
2 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the cross-platform hypervisor Xen in Linux operating systems allows a perpetrator to gain unauthorized access to protected information or cause service failures.
10 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the Linux operating system’s kernel, allowing a hacker to execute arbitrary code
10 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the Linux operating system’s kernel memory management subsystem, which allows attackers to increase their privileges
12 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability in the implementation of the Lockdown Mode mechanism for Linux operating systems allows a hacker to circumvent security restrictions.
15 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the packet_recvmsg() function in the Android operating system’s kernel allows a hacker to execute arbitrary code.
15 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the reserve_sfa_size() function in the openvswitch module of the Linux operating system allows a hacker to increase their privileges or cause service failures.
15 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the netfilter subsystem in the Linux operating system allows a hacker to increase their privileges and execute arbitrary code.
18 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the route4_change function (net/sched/cls_route.c) in the Linux operating system allows a attacker to execute arbitrary code or cause the application to crash.
22 Aug 202200:00
–bdu_fstec
bdu_fstec		The vulnerability of the kvm_dirty_ring_push function (virt/kvm/dirty_ring.c) in the KVM virtualization subsystem of the Linux operating system allows a hacker to trigger a service failure.
22 Aug 202200:00
–bdu_fstec
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03 Dec 2025 00:00Current
8.7High risk
Vulners AI Score8.7
CVSS 3.17.8 - 9.8
CVSS 22.7 - 10
CVSS 37.8 - 8
EPSS0.98745
SSVC
linux kernelroute4 changeuse after freeprivilege escalationdenial of servicearbitrary codelocal attackercredentials replacement
8