kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function

A flaw was found in the Netfilter subsystem in the Linux kernel. This issue occurs in the nftverdictinit function, allowing positive values as a drop error within the hook verdict, therefore, the nfhookslow function can cause a double-free vulnerability when NFDROP is issued with a drop error tha...

kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function

A flaw was found in the Netfilter subsystem in the Linux kernel. This issue occurs in the nftverdictinit function, allowing positive values as a drop error within the hook verdict, therefore, the nfhookslow function can cause a double-free vulnerability when NFDROP is issued with a drop error tha...

SUSE CVE-2021-47106

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix use-after-free in nftsetcatchalldestroy We need to use listforeachentrysafe iterator because we can not access @catchall after kfreercu call. syzbot reported: BUG: KASAN: use-after-free in...

SUSE CVE-2023-52581

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix memleak when more than 255 elements expired When more than 255 elements expired we're supposed to switch to a new gc container structure. This never happens: u8 type will wrap before reaching the boundary...

DEBIAN-CVE-2023-52581

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix memleak when more than 255 elements expired When more than 255 elements expired we're supposed to switch to a new gc container structure. This never happens: u8 type will wrap before reaching the boundary...

kernel: nf_tables: use-after-free vulnerability in the nft_setelem_catchall_deactivate() function

A double-free flaw was found in how the Linux kernel's NetFilter system marks whether a catch-all element is enabled. A local user could use this flaw to crash the system...

OESA-2024-1179 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: Transmit requests in Xen's virtual network protocol can consist of multiple parts. While not really useful, except for the initial part any of them may be of zero length, i.e. carry no data at all. Besides a certain initial porti...

OESA-2024-1176 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: Transmit requests in Xen's virtual network protocol can consist of multiple parts. While not really useful, except for the initial part any of them may be of zero length, i.e. carry no data at all. Besides a certain initial porti...

Important: kernel

Issue Overview: A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. The nftverdictinit function allows positive values as drop error within the hook verdict, and hence the nfhookslow function can cause a double...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: drm: Don't unref the same fb many times by mistake due to deadlock handling CVE-2023-52486 In the Linux kernel, the following vulnerability has been resolved: mm/sparsemem: fix race in accessing memorysection-usag...

kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation

A use-after-free flaw was found in nftables cross-table in the net/netfilter/nftablesapi.c function in the Linux kernel. This flaw allows a local, privileged attacker to cause a use-after-free problem at the time of table deletion, possibly leading to local privilege escalation...

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

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SUSE CVE-2024-1085

A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. The nftsetelemcatchalldeactivate function checks whether the catch-all set element is active in the current generation instead of the next generation before...

AZL-34155 CVE-2024-1086 affecting package kernel for versions less than 5.15.153.1-1

A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. The nftverdictinit function allows positive values as drop error within the hook verdict, and hence the nfhookslow function can cause a double free...

DEBIAN-CVE-2024-1086

A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. The nftverdictinit function allows positive values as drop error within the hook verdict, and hence the nfhookslow function can cause a double free...

CLSA-2024-1706618382 Fix of 12 CVEs

Jammy update: v5.15.140 upstream stable release LP: 2050038 // CVE-url: https://ubuntu.com/security/CVE-2024-0607 - netfilter: nftables: fix pointer math issue in nftbyteordereval CVE-url: https://ubuntu.com/security/CVE-2024-0607 - netfilter: nftables: Introduce new 64-bit helper register...

OESA-2024-1097 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 netfilter: nftables: Reject tables of unsupported family; While creating a new netfilter table, lack of a safeguard against invalid...

kernel: use after free in nft_immediate_deactivate

A use-after-free flaw was found in the Linux kernel's netfilter: nftables component, which can be exploited to achieve local privilege escalation. On an error when building a nftables rule, deactivating immediate expressions in nftimmediatedeactivate can unbind the chain and objects can be...

kernel: use-after-free in netfilter: nf_tables

A use-after-free flaw was found in the Linux kernel's netfilter: nftables component, which 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 release the objects in...

kernel: use after free in nft_immediate_deactivate

A use-after-free flaw was found in the Linux kernel's netfilter: nftables component, which can be exploited to achieve local privilege escalation. On an error when building a nftables rule, deactivating immediate expressions in nftimmediatedeactivate can unbind the chain and objects can be...