DEBIAN-CVE-2023-6622

A null pointer dereference vulnerability was found in nftdynsetinit in net/netfilter/nftdynset.c in nftables in the Linux kernel. This issue may allow a local attacker with CAPNETADMIN user privilege to trigger a denial of service...

AZL-32172 CVE-2023-6622 affecting package kernel for versions less than 5.15.143.1-1

A null pointer dereference vulnerability was found in nftdynsetinit in net/netfilter/nftdynset.c in nftables in the Linux kernel. This issue may allow a local attacker with CAPNETADMIN user privilege to trigger a denial of service...

kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free

A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTARULECHAINID. This flaw allows a local user to crash or escalate their privileges on the system...

SUSE CVE-2023-6111

A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. The function nfttransgccatchall did not remove the catchall set element from the catchalllist when the argument sync is true, making it possible to free a...

AZL-32122 CVE-2023-6111 affecting package hyperv-daemons for versions less than 5.15.143.1-1

A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. The function nfttransgccatchall did not remove the catchall set element from the catchalllist when the argument sync is true, making it possible to free a...

UBUNTU-CVE-2023-6111

A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. The function nfttransgccatchall did not remove the catchall set element from the catchalllist when the argument sync is true, making it possible to free a...

kernel: netfilter: NULL pointer dereference in nf_tables due to zeroed list head

A NULL pointer dereference flaw was found in the Linux kernel’s netfilter subsystem. The issue could occur due to an error in nftablesupdtable while freeing a transaction object not placed on the list head. This flaw allows a local, unprivileged user to crash the system, resulting in a denial of...

Important: kernel-livepatch-5.10.186-179.751

Issue Overview: A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. When nftablesdelrule is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the...

nf-beatz.de Improper Access Control vulnerability OBB-3768613

Following the coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: a. verified the vulnerability and confirmed its existence; b. notified the website operator about its existence. Technical details of the vulnerability are currently hidde...

nf-web.de Improper Access Control vulnerability OBB-3766286

Following the coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: a. verified the vulnerability and confirmed its existence; b. notified the website operator about its existence. Technical details of the vulnerability are currently hidde...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ceph: drop messages from MDS when unmounting CVE-2022-48628 A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. Due to a race...

kernel: netfilter: NULL pointer dereference in nf_tables due to zeroed list head

A NULL pointer dereference flaw was found in the Linux kernel’s netfilter subsystem. The issue could occur due to an error in nftablesupdtable while freeing a transaction object not placed on the list head. This flaw allows a local, unprivileged user to crash the system, resulting in a denial of...

kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation

A use-after-free vulnerability was found in the Netfilter subsystem of the Linux kernel when processing batch requests to update nftables configuration. This vulnerability can be abused to perform arbitrary reads and writes in kernel memory. A local user with CAPNETADMIN capability could use this...

kernel: netfilter: nf_tables: do not ignore genmask when looking up chain by id

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: do not ignore genmask when looking up chain by id When adding a rule to a chain referring to its ID, if that chain had been deleted on the same batch, the rule might end up referring to a deleted chain. This...

kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()

An out-of-bounds OOB memory access flaw was found in the Netfilter module in the Linux kernel's nftbyteordereval in net/netfilter/nftbyteorder.c. A bound check failure allows a local attacker with CAPNETADMIN access to cause a local privilege escalation issue due to incorrect data alignment...

Important: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availabl...

kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation

A use-after-free vulnerability was found in the Netfilter subsystem of the Linux kernel when processing batch requests to update nftables configuration. This vulnerability can be abused to perform arbitrary reads and writes in kernel memory. A local user with CAPNETADMIN capability could use this...

Use-after-free in Linux kernel's netfilter: nf_tables component

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Vulnerabilities of functions nftFlushTable(), nfTablesDelChain(), nfTablesNewRule(), nfTablesDelRule(), and __nftReleaseTable() in Linux kernel, which allow attackers to compromise the confidentiality, integrity, and accessibility of protected information, or enhance their privileges.

The vulnerabilities of the functions nftFlushTable, nfTablesDelChain, nfTablesNewRule, nfTablesDelRule, and nftReleaseTable in the Linux kernel are related to the reutilization of previously freed memory. Exploiting these vulnerabilities can allow an attacker to compromise the confidentiality,...

UBUNTU-CVE-2023-5197

A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-free. We recommend upgrading past commit...