RHEL 9 : kernel (RHSA-2026:21556)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:21556 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: proc: use the same treatment ...

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to reading data beyond the buffer in memory, allowing an attacker to execute arbitrary code.

The vulnerability of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relates to reading data beyond the buffer in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

PT-2026-44254

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1 Description An issue exists in the KVM x86 component regarding slow flush hypercalls. The use of the is guest modevcpu function is incorrect because translate nested gpa is only valid when an L2 guest ...

Important: Red Hat Security Advisory: fence-agents security update

An update for fence-agents is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availabl...

CVE-2026-46002

A flaw was found in the Linux kernel's ext2 filesystem. A local attacker could create a specially crafted filesystem image with malformed inodes index nodes that, when mounted, would not be properly rejected by the ext2iget function. This could lead to a kernel warning and potentially a system...

CVE-2026-46037

A flaw was found in the Linux kernel, specifically within its IPv4 Internet Control Message Protocol ICMP component. This vulnerability occurs because the system does not properly check the type of ICMP replies before attempting to process them. An attacker could potentially exploit this by sendi...

firefox: Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

CVE-2026-46082

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Inject UD for INVLPGA if EFER.SVME=0 INVLPGA should cause a UD when EFER.SVME is not set. Add a check to properly inject UD when EFER.SVME=0. sean: tag for stable@...

CVE-2026-46037

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmppointers Extended echo replies use ICMPEXTECHOREPLY as the outbound reply type. That value is outside the range covered by icmppointers, which only describes the traditional ICMP...

UBUNTU-CVE-2026-46094

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

UBUNTU-CVE-2026-45920

In the Linux kernel, the following vulnerability has been resolved: ext4: fix dirtyclusters double decrement on fs shutdown fstests test generic/388 occasionally reproduces a warning in ext4putsuper associated with the dirty clusters count: WARNING: CPU: 7 PID: 76064 at fs/ext4/super.c:1324...

UBUNTU-CVE-2026-46037

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmppointers Extended echo replies use ICMPEXTECHOREPLY as the outbound reply type. That value is outside the range covered by icmppointers, which only describes the traditional ICMP...

CVE-2026-46094

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

CVE-2026-46094

CVE-2026-46094 affects the Linux kernel ext4 code. The vulnerability arises from a bounds check in check_xattrs() for the next xattr entry, where the code compared (void*)next >= end. This could allow next to point within sizeof(u32) bytes of end, and on the subsequent loop iteration IS_LAST_E...

EUVD-2026-32477

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

CVE-2026-46094 ext4: fix bounds check in check_xattrs() to prevent out-of-bounds access

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

CVE-2026-46037

The CVE-2026-46037 issue affects the Linux kernel IPv4 ICMP component. Extended echo replies could use ICMP_EXT_ECHOREPLY outside the icmp_pointers[] range; the fix avoids icmp_pointers[] lookups for out-of-range types and uses array_index_nospec() for in-range lookups. Multiple OS feeds report p...

EUVD-2026-32414

In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject short ahash digests during instance creation authencesn requires either a zero authsize or an authsize of at least 4 bytes because the ESN encrypt/decrypt paths always move 4 bytes of high-order sequen...

CVE-2026-45942

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45912

In the Linux kernel, the following vulnerability has been resolved: ext4: don't cache extent during splitting extent Caching extents during the splitting process is risky, as it may result in stale extents remaining in the status tree. Moreover, in most cases, the corresponding extent block entri...