Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: sched: flower: Protect flwalk with rcu. The patch that refactored flwalk to use idrforeachentrycontinueul also removed the rcu protection for individual filters. This caused a use-after-free when the filter was deleted...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: xfrm: unexport init-annotated xfrm4protocolinit EXPORTSYMBOL and init are a poor combination, as the .init.text section is freed after initialization. As a result, modules cannot use symbols annotated with init. Accessing a...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fixed a possible leak of the pernet namespace in smcinit. In smcinit, registerpernetsubsys&smcnetstatops is called without any error handling. If this call fails, the registration of &smcnetops will not be reversed. And ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: taprio: improper checking of the TCATAPRIOTCENTRYINDEX attribute The taprioparsetcentry function does not correctly check the TCATAPRIOTCENTRYINDEX attribute: int tc; // Signed value tc =...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: fixed the lockdep issue in qdisctreereducebacklog The qdisctreereducebacklog function is called with the qdisc lock held; this issue was not addressed in the previous version. We must use qdisclookuprcu instead of...

Astra Linux – Vulnerability in libcommons-net-java

Prior to Apache Commons Net 3.9.0, Net’s FTP client trusted the host based on the PASV response by default. A malicious server could redirect the Commons Net code to use a different host, but the user had to connect to the malicious server in the first place. This could result in the leakage of...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the net/sched/schcbq.c file of the Linux kernel, from version 6.1.4 onwards, cbqclassify allows attackers to cause a denial of service due to type confusion. Non-negative numbers can sometimes indicate a TCACTSHOT condition instead of valid classification results...

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

In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix use-after-free in tundetach Syzbot reported a use-after-free in tundetach. This causes a call trace like the following: ================================================================== BUG: KASAN: use-after-free i...

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 – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: gso: Fixed a panic that occurred when using a fraglist with mixed head allocation types. Since the commit 3dcbdb134f32 “net: gso: Fixed an error in skbsegment when splitting a gsosize mangled skb having linear-headed...

Astra Linux – Vulnerability in golang-golang-x-net

In net/http in Go, before versions 1.18.6 and 1.19.x, and before version 1.19.1, attackers can cause a denial of service because an HTTP/2 connection may become unresponsive during closure, if the shutdown process is interrupted by a fatal error...

Astra Linux – Vulnerability in golang-golang-x-net, golang-1.19

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, enough to trigger a denial of service due to a small number of small requests...

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

In the Linux kernel, the following vulnerability has been resolved: media: rc: The bpf attach/detach operation requires write permission. source-iocs-preserved const=CAPNETADMIN...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: veth: The GRO flag is cleared when XDP is disabled, even when the device is disabled. The NETIFFGRO flag is set automatically when XDP is enabled, because both features use the same NAPI mechanism. The logic for clearing 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: tun: limits the printing rate when an illegal packet is received by the tun device. vhostworker calls tun callbacks to receive packets. If too many illegal packets arrive, tundoread continues to dump the packet contents. When...

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

In the Linux kernel, the following vulnerability has been resolved: net/rds: fixed the warning in rdsconnconnectifdown. If a connection is not established yet, getmr will fail, causing the connection to be initiated after getmr...

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: actskbmod: prevent kernel-infoleak The syzbot discovered that tcfskbmoddump was copying four bytes from the kernel stack to user space 1. The issue here is that ‘struct tcskbmod’ has a four-byte hole. We need to cle...

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: netfilter: nftables: honor table dormant flag from netdev release event path Check for table dormant flag otherwise netdev release event path tries to unregister an already unregistered hook. 524854.857999 ------------ cut here...

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

In the Linux kernel, the following vulnerability has been resolved: ila: call nfunregisternethooks sooner syzbot found an use-after-free Read in ilanfinput 1 Issue here is that ilaxlatexitnet frees the rhashtable, then call nfunregisternethooks. It should be done in the reverse way, with a...