Published: 29/04/2022 Updated: 23/02/2023

CVSS v2 Base Score: 4.6 | Impact Score: 6.4 | Exploitability Score: 3.9

CVSS v3 Base Score: 6.6 | Impact Score: 4.7 | Exploitability Score: 1.8

VMScore: 412

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

It exists that the DMA subsystem in the Linux kernel did not properly ensure bounce buffers were completely overwritten by the DMA device. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0854) ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

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A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_apic of the netfilter subsystem This flaw allows a local user to cause an out-of-bounds write issue (CVE-2022-1015) A flaw was found in the Linux kernel in net/netfilter/nf_tables_corec:nft_do_chain, which can cause a use-after-free This issue needs to handle return with pro ...

Several security issues were fixed in the Linux kernel ...

A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_apic of the netfilter subsystem This flaw allows a local user to cause an out-of-bounds write issue ...

CVE-2022-1015 pertains to an out of bounds access in nf_tables expression evaluation due to validation of user register indices It leads to local privilege escalation, for example by overwriting a stack return address OOB with a crafted nft_expr_payload CVE-2022-1015 is exploitable starting from commit 345023b0db3 ("netfilter: nftables: add nft_p ...

A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_apic of the netfilter subsystem This flaw allows a local user to cause an out-of-bounds write issue (CVE-2022-1015) A flaw was found in the Linux kernel in net/netfilter/nf_tables_corec:nft_do_chain, which can cause a use-after-free This issue needs to handle return with pro ...

An issue was discovered in fs/io_uringc in the Linux kernel through 5118 It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25 (CVE-2021-28951) A flaw was found in unrestricted eBPF usage by the ...

A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds memory write in the Linux kernel's BPF subsystem due to the way a user loads BTF This flaw allows a local user to crash or escalate their privileges on the system (CVE-2022-0500) A flaw was found in the Linux kernel in linux/net/netfilter/nf_table ...

A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_apic of the netfilter subsystem This flaw allows a local user to cause an out-of-bounds write issue (CVE-2022-1015) A flaw was found in the Linux kernel in net/netfilter/nf_tables_corec:nft_do_chain, which can cause a use-after-free This issue needs to handle return with pro ...

A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds memory write in the Linux kernel's BPF subsystem due to the way a user loads BTF This flaw allows a local user to crash or escalate their privileges on the system (CVE-2022-0500) A flaw was found in the Linux kernel in linux/net/netfilter/nf_table ...

Critical Infrastructure Sectors: Critical Manufacturing

Robin on Rails: my notes about technology and some other knowledge.

Robin on Rails: Track My Study of Various Software/Hardware Technologies (Last updated on 2022-11-20) 1 Overview Is it possible to keep track of the latest development of every technology in the software development industry? No Impossible nowadays A lot of people will say: Don't try! Being a programmer requires continuous learning of various technologies However, as t

Local privilege escalation PoC for Linux kernel CVE-2022-1015

CVE-2022-1015 This repository contains a PoC for local privilege escalation of CVE-2022-1015, a bug in the nf_tables component of the linux kernel that I found You can read a detailed analysis of this vulnerability and the exploitation strategy over at my blog Right now, the exploit is a bit messy Sorry! Affected versions Kernels after commit 345023b0db31 (v512) but before

Linux Kernel 1-Day Analysis & Exploitation

CVE-2022-1015 Route Cause nft_parse_register 함수에서 arg가 default로 넘어갈 때에 대한 검증을 하지 않아 nft_do_chain 함수의 stack에서 oob가 터짐 이때 payload expression을 이용하면 read, write를 둘 다 할 수 있다 payload는 아래와 같은 동작을 하게 된다 즉, 인덱스를 적절히 조절하면 stack에서 oob read, write를

linux kernel vulnerabilities root cause analysis

linux-kernel-vulnerabilities-root-cause-analysis Why? Analyze causes of linux kernel vulnerabilitie, to pump out more bugs (HOPE) How? not detailed, be brief towards "root causes" think why these vulnerabilities exist and, more importantly, how to find vulnerability with the same pattern Record CVE-2019-8956 for_each macro nftables CVE-2022-1015

kernel2 CVE-2022-1015 1day WriteUp oil-coffee-0eenotionsite/CVE-2022-1015-1day-WriteUp-c8e48e6110ac40d4b027952f90abc295?pvs=4 [BOB12]A02-배훈상(0601) oil-coffee-0eenotionsite/BOB12-A02-0601-f44dd49576884cba961170b900964a62?pvs=4

A write-up and LPE PoC of an OOB read and write vulnerability in the Linux Kernel.

CVE-2022-1015 A write-up and Local Privilege Escalation Proof-of-Concept of an OOB read and write vulnerability in the Linux Kernel You can find the write-up of this vulnerability on my blog and you can find my introduction to nf_tables here as well An Important note The exploit provided in this repository should not be expected to run successfully on vulnerable kernel versio

Traducción al español de los CVE-2022-1015 y 1016 descubiertos y documentados por David.

CVE-2022-1015 & CVE-2022-1026 Este READMEmd es una traducción del blog de David David encontró los CVE's 1015 y 1016 en el kernel de Linux Puedes visitar su página web para leer el documento original Aquí te dejo sus redes sociales: Twitter Github Un análisis de las dos nuevas vulnerabilidades de Linux en nf_tables Publicado

CVE-2022-1015 # id uid=1000(d) gid=1000(d) groups=1000(d) # /poc [+] unshare done [*] table created: leak_table [*] chain created: leak_chain [*] rule added [*] Listening on port 9999 [*] table created: leak_table [*] chain created: leak_chain [*] rule added [*] Listening on port 9999 kernel_address: ffffffffb4a00000 kernel_stack: ffffc0bb0037fdf0 [*] Saved userland re

CVE-2022-1015 LPE PoC for CVE-2022-1015

My POC for CVE-2022-1015 Compile: gcc -o exploit exploitc helpersc -lmnl -lnftnl -lpthread -no-pie

CWE-787 https://seclists.org/oss-sec/2022/q1/205 https://bugzilla.redhat.com/show_bug.cgi?id=2065323 http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/http://www.openwall.com/lists/oss-security/2022/08/25/2 http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html http://www.openwall.com/lists/oss-security/2023/01/13/2 http://www.openwall.com/lists/oss-security/2023/02/23/1 https://nvd.nist.gov https://alas.aws.amazon.com/ALAS-2022-1577.html https://ubuntu.com/security/notices/USN-5383-1 https://www.cisa.gov/news-events/ics-advisories/icsa-24-046-11 https://ubuntu.com/security/notices/USN-5381-1

CVE-2022-1015

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