Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-net: Added validation for the used length. This addition ensures that the used length is validated which may come from an untrusted device, to prevent data corruption or loss...

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

In the Linux kernel, the following vulnerabilities have been resolved: - Do not allow gsosize to be set to GSOBYFRAGS. - A missing check in virtionethdrtoskb allowed syzbot to crash kernels again. Do not allow gsosize to be set to GSOBYFRAGS 0xffff, because this magic value is used by the kernel....

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netsched: Keep allochash updated after hash allocation. In commit 599be01ee567 “netsched: fix an OOB access in clstcindex”, I moved the cp-hash calculation before the first tcindexallocperfecthash call. However, cp-allochash...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ethtool: Do not perform operations on net devices that are not yet registered. There is a short period between when a net device starts to be unregistered and when it is actually gone. During that time frame, ethtool operations c...

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

A use-after-free vulnerability exists in the Linux kernel’s net/sched:clsu32 component, which can be exploited to achieve local privilege escalation. When the u32change function is called on an existing filter, the entire tcfresult struct is always copied into the new instance of the filter. This...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfq: Fix for integer overflow of “credit”. If schfq is configured with “initial quantum” values greater than INTMAX, the first assignment of “credit” will cause signed integer overflow, resulting in a very negative...

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

A use-after-free vulnerability exists in the net/sched:clsfw component of the Linux kernel, which can be exploited to achieve local privilege escalation. If the tcfchangeindev function fails, fwsetparms will immediately return an error after incrementing or decrementing the reference counter in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: schets: do not remove idle classes from the round-robin list Shuang reported that the following scripts cause issues when executed: 1 tc qdisc add dev ddd0 handle 10: parent 1: ets bands 8 strict 4 priomap 7 7 7 7 7...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: avoid disabling offload when it was never enabled In a rather strange API design decision, qdisc-destroy is called even if qdisc-init never succeeded. This isn’t exclusive to the commit 87b60cfacf9f “netsched:...

Astra Linux – Vulnerability in Linux

A issue was discovered in the Linux kernel versions 2.6.39 through 5.10.16, as used in Xen. The block, net, and SCSI backends consider certain errors as ordinary bugs, which are deliberately designed to cause kernel crashes. For errors that may be influenced by guests such as memory exhaustion...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fixed a use-after-free issue when reverting the termination table. When there are multiple destinations with termination tables, and the second one or later fails, the driver reverts the use of termination tables, but...

Astra Linux – Vulnerability in net-snmp

Net-SNMP provides various tools related to the Simple Network Management Protocol. Prior to version 5.9.2, a user with read-write credentials could use an improperly formatted OID in a SET request to the nsVacmAccessTable, causing a NULL pointer derefrence. Version 5.9.2 includes a patch to addre...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Do not expose hwcounters outside of init net namespace Commit 467f432a521a “RDMA/core: Split port and device counter sysfs attributes” accidentally almost exposed hw counters to non-init net namespaces. It did not expo...

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

Linux Kernel nftables Out-of-bounds Read/Write Vulnerability; nftbyteorder improperly handles the contents of VM registers when CAPNETADMIN is present in any user or network namespace...

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

A vulnerability was discovered in vhostnewmsg in drivers/vhost/vhost.c within the Linux kernel. This issue arises due to the improper initialization of memory in messages transmitted between virtual guests and the host operating system, as implemented in the vhostnewmsg function. This vulnerabili...

Astra Linux – Vulnerability in golang-golang-x-net, containerd-app

The html.Parse function in golang.org/x/net/html has an infinite parsing loop when processing certain inputs, which can lead to a Denial-of-Service DoS attack if an attacker provides specially crafted HTML content...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/smc: A NULL pointer dereferencing issue was fixed in smcpnetfindib. The devname function was called with dev.parent as an argument, but without performing a NULL-check before using it. This issue was resolved by checking the...

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

In the Linux kernel, the following vulnerabilities have been resolved: net: sched: Disallow replacing of child qdisc from one parent to another. Lion Ackermann was able to create a Use-after-Allocation UAF that can be exploited for privilege escalation using the following scripts: Step 1: Create ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/smc: Fixed issues related to LGR and link use-after-free. We encountered a use-after-free issue with LGR/link, where the refcnt of LGR/link reached 0 prematurely and entered a clearing process, making resource access unsaf...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bug: NULL pointer dereferencing in the kernel, address: 0000000000000020 PGD: 0 P4D 0 Oops: 0000 1 PREEMPT SMP PTI CPU: 11 PID: 19713 Comm: ethtool Tainted: G S 6.10.0-rc7+ 7 RIP: 0010: icegetqcoalesce+0x2e/0xa0 ice RSP:...