Astra Linux - уязвимость в linux-5.10, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: vcscreen: The load of the struct vcdata pointer in vcsread was moved to avoid a Use-After-Free UAF condition. After a call to consoleunlock in vcsread, the struct vcdata structure can be freed using vcdeallocate. Therefore, the...

Astra Linux - уязвимость в linux-5.10, linux, linux-5.15

A use-after-free flaw was discovered in vcsread in drivers/tty/vt/vc-screen.c within vc-screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007456)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007456 advisory. In the Linux kernel, the following vulnerability has been resolved: vcscreen: reload load of struct vcdata pointer in vcswrite to avoid UAF After a call to...

CVE-2023-53747

In the Linux kernel, the following vulnerability has been resolved: vcscreen: reload load of struct vcdata pointer in vcswrite to avoid UAF After a call to consoleunlock in vcswrite the vcdata struct can be freed by vcportdestruct. Because of that, the struct vcdata pointer must be reloaded in th...

CVE-2023-53747

CVE-2023-53747 affects the Linux kernel vt/tty subsystem. The vulnerability arises from a use-after-free (UAF) in vc_screen when performing vcs_write() after console_unlock(); the vc_data pointer must be reloaded in the loop after console_lock() to prevent a UAF in vcs_size(). Publications across...

PT-2025-49477

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a use-after-free issue within the vc screen module. Specifically, a struct vc data pointer in the vcs write function can be freed by vc port destruct after a ca...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990071)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990071 advisory. In the Linux kernel, the following vulnerability has been resolved: vcscreen: move load of struct vcdata pointer in vcsread to avoid UAF After a call to consoleunloc...

Linux Distros Unpatched Vulnerability : CVE-2023-52973

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: vcscreen: move load of struct vcdata pointer in vcsread to avoid UAF After a call to...

Important: kernel

Issue Overview: A use-after-free flaw was found in vcsread in drivers/tty/vt/vcscreen.c in vcscreen in the Linux Kernel. In this flaw an attacker with local user access may lead to a system crash or a leak of internal kernel information. CVE-2023-3567 In the Linux kernel, the following...

kernel: Linux kernel: Denial of Service via use-after-free in vc_screen

A flaw was found in the Linux kernel. A local user can exploit a use-after-free UAF vulnerability in the vcscreen component. This occurs because a pointer to the vcdata structure is not reloaded after a console unlock operation, leading to the use of freed memory. Successful exploitation of this...

kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

A use-after-free flaw was found in vcsread in drivers/tty/vt/vcscreen.c in vcscreen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information...

kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

A use-after-free flaw was found in vcsread in drivers/tty/vt/vcscreen.c in vcscreen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information...

kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

A use-after-free flaw was found in vcsread in drivers/tty/vt/vcscreen.c in vcscreen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information...

kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

A use-after-free flaw was found in vcsread in drivers/tty/vt/vcscreen.c in vcscreen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information...

CLSA-2024-1705496273 kernel: Fix of 13 CVEs

Bluetooth: L2CAP: Fix use-after-free in l2capsockreadycb CVE-2023-40283 - ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet CVE-2023-6932 - smb: client: fix OOB in smbCalcSize CVE-2023-6606 - net/sched: schhfsc: Ensure inner classes have fsc curve CVE-2023-4623 - net/sched: clsfw:...

CLSA-2024-1705496067 kernel: Fix of 13 CVEs

Bluetooth: L2CAP: Fix use-after-free in l2capsockreadycb CVE-2023-40283 - ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet CVE-2023-6932 - smb: client: fix OOB in smbCalcSize CVE-2023-6606 - net/sched: schhfsc: Ensure inner classes have fsc curve CVE-2023-4623 - net/sched: clsfw:...

CLSA-2024-1705494763 kernel: Fix of 13 CVEs

Bluetooth: L2CAP: Fix use-after-free in l2capsockreadycb CVE-2023-40283 - ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet CVE-2023-6932 - smb: client: fix OOB in smbCalcSize CVE-2023-6606 - net/sched: schhfsc: Ensure inner classes have fsc curve CVE-2023-4623 - net/sched: clsfw:...

CLSA-2024-1705494430 kernel: Fix of 13 CVEs

Bluetooth: L2CAP: Fix use-after-free in l2capsockreadycb CVE-2023-40283 - ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet CVE-2023-6932 - smb: client: fix OOB in smbCalcSize CVE-2023-6606 - net/sched: schhfsc: Ensure inner classes have fsc curve CVE-2023-4623 - net/sched: clsfw:...

CLSA-2023-1693333992 Fix of 12 CVEs

CVE-url: https://ubuntu.com/security/CVE-2023-4128 - net/sched: clsu32: No longer copy tcfresult on update to avoid use-after- free - net/sched: clsfw: No longer copy tcfresult on update to avoid use-after- free - net/sched: clsroute: No longer copy tcfresult on update to avoid use- after-free...

AZL-27758 CVE-2023-3567 affecting package kernel for versions less than 5.15.126.1-1

A use-after-free flaw was found in vcsread in drivers/tty/vt/vcscreen.c in vcscreen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information...