Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: virtio-net: The issue of checking the received length in large packets has been fixed. Since commit 4959aebba8c0 “virtio-net: Use the MTU size as the buffer length for large packets”, when the guest gso is disabled, the allocated...

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

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a reproduction example for u32classify: Bug:...

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: net/tipc: fixed the slab-use-after-free issue in tipcaeadencryptdone+0x4bd/0x510 net/tipc/crypto.c:840. Syzbot reported a slab-use-after-free with the following call trace:...

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 found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: NFSD: Hold a reference to the net structure for the lifetime of the open file descriptor. The /proc/fs/nfs/exports proc entry is created during module initialization and remains valid throughout the lifetime of the module. The...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/sched: schsfb: Replace the direct dequeue call with peek and qdiscdequeuepeeked. When sfb has children e.g., qfq qdisc whose peek callback is qdiscpeekdequeued, we could encounter a kernel panic. When the parent of such qdisc...

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: netsched: qfq: A double addition of a classifier was corrected in the class, where netem is a child qdisc. As described in Gerrard’s report 1, there are use cases where a netem child qdisc can make the parent qdisc’s enqueue...

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: netsched: The gsoskb list is also flushed during the -change operation. Previously, when reducing the limit of a qdisc using the -change operation, only the main skb queue was trimmed, potentially leaving packets in the gsoskb...

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 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 in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Net: Bridge: mcast: Fixed an issue where a use-after-free occurred with the multicast context of a master VLAN. The brmulticasttoggleonevlan function clears the BRVLFLAGMCASTENABLED flag under the br-multicastlock before...

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: net: strparser: Fixed a leak of data in the skbhead during strpabortstrp. When the stream parser is aborted, for example after a message assembly timeout, it may still retain a reference to the partially assembled message in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Net: Atlantic: RX pages that are consumed but not refilled from buffers. The aqringrxdeinit function only iterates over the range swhead, swtail, which is the region posted to the hardware. Since the page reuse strategy was...

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, Linux-5.15, Linux-5.10, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net/tls: The use-after-free issue in the -EBUSY error handling path of tlsdoencryption has been fixed. The -EBUSY handling in tlsdoencryption, introduced with commit 859054147318 “net: tls: handle backlogging of crypto requests”,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In the TCP layer, the secpath process is dropped simultaneously with the current dropping of the dst. Xiumei reported encountering a warning in xfrm6tunnelnetexit while running tests that involve creating a pair of netns, running...

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: net/sched: It has been ensured that teql can only be used as a root qdisc. The design intention of teql is that it should only be used as a root qdisc. Therefore, we need to ensure this constraint is respected. Although not very...

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: rapidio: Fix an API misuse when rioaddnet fails. rioaddnet calls deviceregister, and it fails when deviceregister does. Therefore, putdevice should be used instead of kfree. Also, add "mport-net = NULL;" to avoid a...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ppp: Fixed race conditions in pppfillforwardpath. pppfillforwardpath has two race conditions: 1. The ppp-channels list can change between listempty and listfirstentry, as ppplock is not held. If the only channel is deleted in...