Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Added a null check in resourcelogpipetopologyupdate REASON When switching from “Extend” to “Second Display Only”, we sometimes call resourcegetotgmasterforstream on an eDP stream, even though the eDP is...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Remove ppath from ext4extreplayupdateex to avoid double-free. When calling ext4forcesplitextentat&ppath in ext4extreplayupdateex, ppath is updated, but it is path that is freed. This potentially triggers a double-free in th...

Astra Linux – Vulnerability in PostgresSQL 11

A flaw was discovered in PostgreSQL. By using an INSERT...ON CONFLICT...DO UPDATE command on a specially crafted table, an authenticated database user could read arbitrary bytes of server memory. The most significant threat of this vulnerability is to data confidentiality...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fixed the issue with rcudereferenceprotected. When destroying all sets, we are either in the pernetexit phase or executing a “destroy all sets” command from user space. The latter was taken into account in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: added an missing RCU unlock in the error path in tryreleasesubpageextentbuffer. Call rcureadlock before exiting the loop in tryreleasesubpageextentbuffer, because there is a rcureadunlock call after the loop. This issue wa...

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

In the Linux kernel, the following vulnerability has been resolved: bpf: Deferring the release of the inner map when necessary When updating or deleting an inner map in the map array or map htab, the map may still be accessed by non-sleepable programs or sleepable programs. However, when the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: eventpoll: Deferring the epfree function in eventpoll.c to an RCU callback during a grace period. In certain situations, epfree in eventpoll.c will free the epi-ep structure while it is still being used by another concurrent...

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

In the Linux kernel, the following vulnerability has been resolved: fpga: region: adding the owner module and taking its reference count The current implementation of the fpga region assumes that the low-level module registers a driver for the parent device and uses its owner pointer to take the...

Astra Linux – Vulnerability in Flatpak

Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.14.0 and 1.15.10, a malicious or compromised Flatpak app that used persistent directories could access and write files outside of its usual access rights, which constituted an attack on integrity and...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: use rcu-safe version of ipv6getlladdr Some time ago, 8965779d2c0e "ipv6,mcast: always hold idev-lock before mcalock" switched ipv6getlladdr to ipv6getlladdr, which is a rcu-unsafe version. This was acceptable, as...

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: bpf: Reject unhashed sockets in bpfskassign The semantics for bpfskassign are as follows: sk = somelookupfunc bpfskassignskb, sk bpfskreleasesk That is, the sk is not consumed by bpfskassign. Therefore, the function must ensure...

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: ndisc: Extended RCU protection has been added to ndiscsendskb. The ndiscsendskb function can be called without holding RTNL or RCU. The rcureadlock function must be acquired earlier, so that we can use devnetrcu, and potential...

Astra Linux – Vulnerability in openjdk-11, bcel

The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode. Users are recommended to update to version 2.7.3 o...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: KVM: x86: Acquiring kvm-srcu when handling KVMSETVCPUEVENTS Acquire kvm-srcu when processing KVMSETVCPUEVENTS. When SMM mode is toggled, KVM will forcibly leave the nested VMX/SVM state. Leaving such a state also results in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The use-of-free condition was fixed by using callrcu for oplockinfo. Currently, ksmbd immediately frees oplockinfo using kfree, even though it is accessed during critical sections of the RCU read-side, such as in functions...

Astra Linux – Vulnerability in jqueryui

jQuery-UI is the official jQuery user interface library. Prior to version 1.13.0, accepting the value of the altField option from untrusted sources might execute untrusted code. This issue has been fixed in jQuery UI 1.13.0. Any string value passed to the altField option is now treated as a CSS...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb: client: prevented races in -queryinterfaces It was possible for two query interfaces to simultaneously attempt to update the interfaces. This issue can be avoided by checking and updating ifacelastupdate under ifacelock...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Networks: Bridge: MST: Fixed suspicious RCU usage in brmstsetstate. I converted brmstsetstate to RCU to avoid a vlan use-after-free, but I forgot to change the vlangroupdereferencehelper. I switched to using the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/kasan: Fixed an issue where the early region was not updated correctly. The shadow’s page table is not updated when PTERPNSHIFT is 24 and PAGESHIFT is 12. This not only causes false positives but also false negatives, ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: rcu-tasks: Fixed a race condition in the schedule function and the flush work operation. When booting secondary CPUs, cpusreadlock/unlock does not keep the online cpumask stable. This temporary change in the online mask result...