2680 matches found
Privilege Desynchronization: Cross-Privilege Spectre Attacks with Branch Privilege Injection
AMD ID: AMD-SB-7030 Potential Impact: N/A Severity: N/A Summary Researchers from ETH Zurich have provided AMD with a paper titled “Privilege Desynchronization: Cross-Privilege Spectre Attacks with Branch Privilege Injection.” AMD reviewed the paper and believes that this vulnerability does not...
Important: kernel
Issue Overview: A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol L2TP. A missing lock when clearing skuserdata can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service. CVE-2022-4129 In...
Detecting Speculative Data Flow Vulnerabilities Using Weakest Precondition Reasoning
Speculative execution is a hardware optimisation technique where a processor, while waiting on the completion of a computation required for an instruction, continues to execute later instructions based on a predicted value of the pending computation. It came to the forefront of security research ...
Spectre-Branch Status Eviction (BSE) Vulnerability on ARM® Processors
AMD ID: AMD-SB-8007 Potential Impact: N/A Severity: N/A Summary According to the ARM® security team, Spectre-BSE exploits a microarchitectural mechanism that equips an adversary with a weak form of control over the victim’s branch history despite existing protections. This can lead to exploitativ...
CVE-2023-52997
A vulnerability was found in the Linux kernel's ipmetricsconvert function, where improper handling of user input can potentially leak kernel memory via side channels. This issue is caused by the use of @type, a user-controlled input, which is an array within this function. If a CPU speculatively...
SUSE CVE-2023-52996
In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in fibmetricsmatch if !type continue; if type RTAXMAX return false; ... fival = fi-fibmetrics-metricstype - 1; @type being used as an array index, we need to prevent cpu speculation or ri...
SUSE CVE-2023-52997
In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in ipmetricsconvert if !type continue; if type RTAXMAX return -EINVAL; ... metricstype - 1 = val; @type being used as an array index, we need to prevent cpu speculation or risk leaking...
SUSE CVE-2023-53000
In the Linux kernel, the following vulnerability has been resolved: netlink: prevent potential spectre v1 gadgets Most netlink attributes are parsed and validated from nlavalidateparse or validatenla u16 type = nlatypenla; if type == 0 || type maxtype / error or continue / @type is then used as a...
DEBIAN-CVE-2023-53024
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation To mitigate Spectre v4, 2039f26f3aca "bpf: Fix leakage due to insufficient speculative store bypass mitigation" inserts lfence instructions after 1...
DEBIAN-CVE-2023-53000
In the Linux kernel, the following vulnerability has been resolved: netlink: prevent potential spectre v1 gadgets Most netlink attributes are parsed and validated from nlavalidateparse or validatenla u16 type = nlatypenla; if type == 0 || type maxtype / error or continue / @type is then used as a...
DEBIAN-CVE-2023-52996
In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in fibmetricsmatch if !type continue; if type RTAXMAX return false; ... fival = fi-fibmetrics-metricstype - 1; @type being used as an array index, we need to prevent cpu speculation or ri...
CVE-2023-52997
In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in ipmetricsconvert if !type continue; if type RTAXMAX return -EINVAL; ... metricstype - 1 = val; @type being used as an array index, we need to prevent cpu speculation or risk leaking...
CVE-2023-53000
In the Linux kernel, the following vulnerability has been resolved: netlink: prevent potential spectre v1 gadgets Most netlink attributes are parsed and validated from nlavalidateparse or validatenla u16 type = nlatypenla; if type == 0 || type maxtype / error or continue / @type is then used as a...
DEBIAN-CVE-2023-52997
In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in ipmetricsconvert if !type continue; if type RTAXMAX return -EINVAL; ... metricstype - 1 = val; @type being used as an array index, we need to prevent cpu speculation or risk leaking...
UBUNTU-CVE-2023-53024
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation To mitigate Spectre v4, 2039f26f3aca "bpf: Fix leakage due to insufficient speculative store bypass mitigation" inserts lfence instructions after 1...
UBUNTU-CVE-2023-52997
In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in ipmetricsconvert if !type continue; if type RTAXMAX return -EINVAL; ... metricstype - 1 = val; @type being used as an array index, we need to prevent cpu speculation or risk leaking...
UBUNTU-CVE-2023-53000
In the Linux kernel, the following vulnerability has been resolved: netlink: prevent potential spectre v1 gadgets Most netlink attributes are parsed and validated from nlavalidateparse or validatenla u16 type = nlatypenla; if type == 0 || type maxtype / error or continue / @type is then used as a...
UBUNTU-CVE-2023-52996
In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in fibmetricsmatch if !type continue; if type RTAXMAX return false; ... fival = fi-fibmetrics-metricstype - 1; @type being used as an array index, we need to prevent cpu speculation or ri...
CVE-2023-53024
The CVE-2023-53024 entry concerns the Linux kernel BPF subsystem. Root cause: speculative store bypass (SSB) can cause a stack slot initially containing a pointer to be overwritten by a scalar without a subsequent lfence, enabling a potential speculative-pointer‑as‑scalar leak. The mitigation add...
CVE-2023-53000
CVE-2023-53000 is a Linux kernel vulnerability affecting the netlink attribute handling. The issue arises when the netlink attribute type (nla_type) is used as an index after validation, enabling a possible Spectre v1 gadget to leak kernel memory to a local attacker. The public description notes ...