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CVE-2022-36946

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Date: July 26, 2022

nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.

Language: C

Severity Score

Related Resources (11)

https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
https://www.debian.org/security/2022/dsa-5207
https://security.netapp.com/advisory/ntap-20220901-0007/
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-36946
https://marc.info/?l=netfilter-devel&m=165883202007292&w=2
https://nvd.nist.gov/vuln/detail/CVE-2022-36946
https://access.redhat.com/security/cve/CVE-2022-36946
https://security-tracker.debian.org/tracker/CVE-2022-36946
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
https://www.mend.io/vulnerability-database/CVE-2022-36946

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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