Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: initialize registers in nftdochain The registers were initialized to prevent a stack leak into the user space...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

A use-after-free vulnerability exists in the netfilter component of the Linux kernel’s nftables module, which can be exploited to achieve local privilege escalation. The nftpipapowalk function does not skip inactive elements during the set walk operation, which can result in double deactivation o...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

A use-after-free vulnerability in the Linux kernel’s netfilter:nftables component can be exploited to achieve local privilege escalation. Adding or removing rules from chain bindings within the same transaction can lead to use-after-free issues. We recommend upgrading to the version after the...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel up to version 6.3.1, a use-after-free issue in Netfilter’s nftables module arises when processing batch requests. This allows unprivileged local users to obtain root privileges. The issue occurs due to improper handling of anonymous sets...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10, and Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: Do not ignore the genmask when looking up a chain by its ID. When adding a rule to a chain whose ID is referenced, if that chain has been deleted in the same batch, the rule might end up referencing a deleted...

Astra Linux – Vulnerability in Linux 5.10

A issue was discovered in net/netfilter/nftablesapi.c within the Linux kernel prior to version 5.19.6. A denial of service can occur when binding to an already bound chain...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fixed a percpu memory leak in nftablesaddchain. It seems that the percpu memory issue related to chain statistics began to occur after the commit 3bc158f8d0330f0a “netfilter: nftables: mapping basechain...

Astra Linux – Vulnerability in Linux, Linux 5.10

The file net/netfilter/nfdupnetdev.c in the Linux kernel versions 5.4 through 5.6.10 allows local users to gain privileges due to a heap-out-of-bounds write. This issue is related to the nftablesoffload mechanism...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

A use-after-free vulnerability was discovered in the Linux kernel’s netfilter subsystem, specifically in the net/netfilter/nftablesapi.c file. Improper error handling related to NFTMSGNEWRULE allows a dangling pointer to be used within the same transaction, leading to a use-after-free...

Astra Linux – Vulnerability in Linux 5.10, Linux

In nftablesupdtable, if nftablestableenable returns an error, nfttransdestroy is called to free the transaction object. nfttransDestroy calls listdel, but the transaction was never placed on a list—the list head contains only zeros, which results in a NULL pointer being dereferenced...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: The netlink notifier might race to release objects. The commit release path is invoked via callrcu, and it runs without locking to release the objects after the rcu grace period. The netlink notifier handler...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables – There is a possibility of module reference underflow in the error path. When nftexprclone fails, dst-ops is set. However, the module reference count has not been updated yet. As a result, nftexprdestroy...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: clonesetfence only applies to the flushed set Syzbot, using fault injection, triggered a failing memory allocation with GFPKERNEL, resulting in a WARN message: iter.err WARNING: net/netfilter/nftablesapi.c:84...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the QEMU implementation of VMWare’s paravirtual RDMA device. This flaw allows a malicious guest driver to allocate and initialize a large number of page tables, which can be used as a ring of descriptors for CQ and async events. This could potentially lead to out-of-bound...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

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

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

A use-after-free vulnerability in the netfilter component of the Linux kernel’s nftables module can be exploited to achieve local privilege escalation. A flaw in the error handling of bound chains causes a use-after-free in the abort path of NFTMSGNEWRULE. This vulnerability requires that...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: clk: qcom: gcc-ipq8074: fix terminating of frequency table arrays The frequency table arrays are supposed to be terminated with an empty element. Add such an entry to the end of the arrays where it is missing, in order to avoid...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: clk: qcom: mmcc-apq8084 – fixed the termination of frequency table arrays. The frequency table arrays should be terminated with an empty element. Add such an entry to the end of the arrays where it is missing, in order to avoid...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: clk: qcom: gcc-ipq6018: fix terminating of frequency table arrays The frequency table arrays are supposed to be terminated with an empty element. Add such an entry to the end of the arrays where it is missing, in order to avoid...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: The commit mutex should not be released during the critical section between nftgcseqBegin and nftgcseqEnd. Otherwise, the async GC worker could collect expired objects and obtain the released commit lock with...