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PT-2021-7327 · Linux +9 · Linux Kernel +9

🗓️ 25 Nov 2021 00:00:00Reported by Positive TechnologiesType 
ptsecurity
 ptsecurity🔗 dbugs.ptsecurity.com👁 22 Views

Memory leak in hugetlbfs allows local user to double-map PUD-aligned memory via shmget, risking data access.

Related
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC		The vulnerability of the `clear_bss` function in Linux operating system kernels, related to errors during the clearing of the initial symbol of a block (.bss), allows an attacker to execute arbitrary code.
1 Aug 202200:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability in the `nft_set_elem_init` function of the `net/netfilter/nf_tables_api.c` file, belonging to the User Namespace Handler component in the Linux operating system’s kernel, allows a hacker to gain root access.
2 Aug 202200:00
–bdu_fstec
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
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
BDU FSTEC		The vulnerability of the eBPF subsystem in the Linux operating system allows a hacker to disclose protected information.
16 Aug 202200:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of the netfront component in the Xen hypervisor allows a attacker to trigger a service failure.
22 Aug 202200:00
–bdu_fstec
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
bdu_fstec
BDU FSTEC		The vulnerability of the blkfront component in the Xen hypervisor allows a attacker to trigger a service failure.
30 Aug 202200:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of the netback driver for Linux operating systems allows a hacker to trigger a service failure.
30 Aug 202200:00
–bdu_fstec
bdu_fstec
BDU FSTEC		The vulnerability of the eBPF subsystem in the Linux operating system allows a hacker to cause a service failure, an application to terminate abnormally, or execute arbitrary code.
30 Aug 202200:00
–bdu_fstec
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SourceLink
githubwww.github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/vmwgfx_fd_priv_esc.rb
githubwww.github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/docker_cgroup_escape.rb
githubwww.github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/netfilter_nft_set_elem_init_privesc.rb
githubwww.github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/cve_2022_0995_watch_queue.rb
githubwww.github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/cve_2023_0386_overlayfs_priv_esc.rb
githubwww.github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/cve_2022_1043_io_uring_priv_esc.rb
githubwww.github.com/tr3ee/CVE-2022-23222
githubwww.github.com/Bonfee/CVE-2022-0995
githubwww.github.com/Bonfee/CVE-2022-25636
githubwww.github.com/xkaneiki/CVE-2023-0386
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14 Aug 2023 00:00Current
7High risk
Vulners AI Score7
CVSS 3.14.4 - 9.8
CVSS 29
CVSS 37.4 - 8.8
CVSS 48.6
EPSS0.78684
SSVC
hugetlbfs memoryshmget double mappingPUD alignmentlocal userdata access
22