gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification

A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...

Linux Distros Unpatched Vulnerability : CVE-2026-23475

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves ...

SUSE CVE-2026-31389

In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free of...

CVE-2026-23475

A flaw was found in the Linux kernel's Serial Peripheral Interface SPI component. The system's per-CPU statistics for the SPI controller were not allocated until after the controller was registered. This created a window where a local user or process could access system files sysfs attributes...

CVE-2026-31389

A flaw was found in the Linux kernel's Serial Peripheral Interface SPI subsystem. During controller registration, a use-after-free vulnerability can occur if the allocation of per-CPU statistics fails. This could allow a local attacker to cause system instability or a denial of service by accessi...

CVE-2026-31389

In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free of...

CVE-2026-23475

In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a...

UBUNTU-CVE-2026-23459

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

CVE-2026-31389

In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free of...

CVE-2026-31389

In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free of...

CVE-2026-31389

CVE-2026-31389 affects the Linux kernel SPI subsystem. The vulnerability is a use-after-free that can occur during controller registration if per-CPU statistics allocation fails, potentially leading to access of freed driver resources and unclocked register accesses. The issue is mitigated by a p...

CVE-2026-23475 spi: fix statistics allocation

In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a...

CVE-2026-23475

In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a...

CVE-2026-23475

CVE-2026-23475 affects the Linux kernel SPI subsystem. The issue was a NULL pointer dereference window in per‑CPU controller statistics: stats were allocated only after controller registration with driver core, so early sysfs access could dereference NULL. The fix moves statistics allocation to t...

CVE-2026-23459 ip_tunnel: adapt iptunnel_xmit_stats() to NETDEV_PCPU_STAT_DSTATS

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

CVE-2026-23459

The CVE-2026-23459 issue affects the Linux kernel IP tunnel code, specifically iptunnel_xmit_stats(). The bug arose because the function assumed tunnels used NETDEV_PCPU_STAT_TSTATS, while vxlan/geneve tunnels call udp_tunnel[6]_xmit_skb() and read NETDEV_PCPU_STAT_DSTATS, creating potential data...

CVE-2026-23435

The CVE-2026-23435 entries describe a Linux kernel PMU/X86 perf vulnerability that was resolved. The root cause was a commit that moved cpuc->events[idx] assignment out of x86_pmu_start() into step 2 of x86_pmu_enable(), after PERF_HES_ARCH checks. This could allow a path that calls pmu->st...

PT-2026-30169

In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a...

Rack's multipart header parsing allows Denial of Service via escape-heavy quoted parameters

Summary Rack::Multipart::Parserhandlemimehead parses quoted multipart parameters such as Content-Disposition: form-data; name="..." using repeated Stringindex searches combined with Stringslice! prefix deletion. For escape-heavy quoted values, this causes super-linear processing. An unauthenticat...

Denial of Service (DoS)

Overview rack is a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between the so-called middleware into a singl...