Improper Handling of Overlapping Protected Memory Ranges in SEV Firmware Leading to Integrity Loss

Improper handling of overlap between protected memory ranges in the Secure Encrypted Virtualization (SEV) firmware could allow a privileged attacker to cause misconfigurations in the RMP potentially resulting in loss of integrity.

Improper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processor with Intel(R) TDX may allow a privileged user to potentially enable escalation of privilege via local access.

HPE NonStop Kernel - Access to unmapped or privileged data

A security vulnerability in HPE NonStop Kernel may allow user space access to privileged or unmapped data.

kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM

Improper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when using Intel(R) TDX within SMM may allow an escalation of privilege. SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Privilege Escalation via Improper Memory Range Handling in Intel Microcode

Improper handling of overlap between protected memory ranges in some microcode for some Intel(R) Processors within Ring 0: Hypervisor may allow an escalation of privilege. Authorized adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

SpotPaltalk 1.1.5 Name/Key Field Denial of Service

SpotPaltalk 1.1.5 contains a denial of service vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can paste a buffer of 1000 characters into the Name/Key field during registration to trigger a crash when the OK button is clicked.

GSearch 1.0.1.0 Denial of Service via Search Input

GSearch 1.0.1.0 contains a denial of service vulnerability that allows local attackers to crash the application by inputting an excessively long string in the search bar. Attackers can paste a buffer of 2000 characters into the search field, click search, and select any result to trigger an application crash.

PHPRunner 10.1 Denial of Service via Dashboard Name Field

PHPRunner 10.1 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the dashboard name field. Attackers can paste a buffer of 10000 characters into the Name field during dashboard creation to trigger an application crash.

Watchr 1.1.0.0 Denial of Service via Search

Watchr 1.1.0.0 contains a denial of service vulnerability that allows local attackers to crash the application by submitting an excessively long string to the search functionality. Attackers can paste a buffer of 8145 characters into the search bar and trigger a search operation to cause the application to crash.

VSCO 1.1.1.0 Denial of Service via Search

VSCO 1.1.1.0 contains a denial of service vulnerability that allows local attackers to crash the application by submitting an excessively long string through the search functionality. Attackers can paste a buffer of 5000 characters into the search bar and navigate back to trigger an application crash.

NordVPN 6.19.6 Denial of Service via Email Field Buffer Overflow

NordVPN 6.19.6 contains a denial of service vulnerability that allows local attackers to crash the application by submitting an excessively long string in the email input field. Attackers can paste a buffer of 100,000 characters into the email field during login to trigger an application crash.

Improper handling of overlap between the segmented reverse map table (RMP) and system management mode (SMM) memory could allow a privileged attacker corrupt or partially infer SMM memory resulting in loss of integrity or confidentiality.

Improper access control in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to bypass RMP protections, potentially resulting in a loss of SEV-SNP guest memory integrity.

RealTerm Serial Terminal 2.0.0.70 Denial of Service via Port Field

RealTerm Serial Terminal 2.0.0.70 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Port field. Attackers can paste a buffer of 1000 characters into the Port input field and click the open button to trigger a crash.

Deluge 1.3.15 Denial of Service via Webseeds Field

Deluge 1.3.15 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Webseeds field. Attackers can paste a buffer of 5000 bytes into the Webseeds field during torrent creation to trigger an application crash.

Windows Kernel Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system. The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.

riscv: prevent pt_regs corruption for secondary idle threads

In the Linux kernel, the following vulnerability has been resolved: riscv: prevent pt_regs corruption for secondary idle threads Top of the kernel thread stack should be reserved for pt_regs. However this is not the case for the idle threads of the secondary boot harts. Their stacks overlap with their pt_regs, so both may get corrupted. Similar issue has been fixed for the primary hart, see c7cdd96eca28 ("riscv: prevent stack corruption by reserving task_pt_regs(p) early"). However that fix was not propagated to the secondary harts. The problem has been noticed in some CPU hotplug tests with V enabled. The function smp_callin stored several registers on stack, corrupting top of pt_regs structure including status field. As a result, kernel attempted to save or restore inexistent V context.

vt: fix memory overlapping when deleting chars in the buffer

In the Linux kernel, the following vulnerability has been resolved: vt: fix memory overlapping when deleting chars in the buffer A memory overlapping copy occurs when deleting a long line. This memory overlapping copy can cause data corruption when scr_memcpyw is optimized to memcpy because memcpy does not ensure its behavior if the destination buffer overlaps with the source buffer. The line buffer is not always broken, because the memcpy utilizes the hardware acceleration, whose result is not deterministic. Fix this problem by using replacing the scr_memcpyw with scr_memmovew.

Memory safety bugs present in Firefox 125. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 126.