Threats Tagged 'ubuntu-pro-fips-16-04-lts'

In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002) * kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007) * kernel: vhost: reset the vring metadata cache on vring reconfiguration (CVE-2026-74580) * kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705) Bug Fix(es) and Enhancement(s): * kernel: vhost: reset the vring metadata cache on vring reconfiguration [rhel-7.9.z] (JIRA:RHEL-224557) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The OpenSSL toolkit provides support for secure communications between machines. This version of OpenSSL package contains only the libraries from the 1.1.1 version and is provided for compatibility with previous releases. Security Fix(es): * openssl: heap buffer overflow in CMS key unwrapping (CVE-2026-63072) * openssl: compat-openssl: DTLS Retransmits Handshake Messages From a Stale Buffer Offset (CVE-2026-84782) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The OpenSSL toolkit provides support for secure communications between machines. This version of OpenSSL package contains only the libraries and is provided for compatibility with previous releases and software that does not support compilation with OpenSSL-1.1. Security Fix(es): * openssl: compat-openssl: DTLS Retransmits Handshake Messages From a Stale Buffer Offset (CVE-2026-84782) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Linux kernel: xfrm single-frag length not properly limited () * kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149) * kernel: blk-cgroup: fix UAF in __blkcg_rstat_flush() (CVE-2026-63802) * kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: xfrm: hold dev ref until after transport_finish NF_HOOK (CVE-2026-31663) * kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581) * kernel: gfs2: Fix use-after-free in iomap inline data write path (CVE-2026-45984) * kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991) * kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043) * kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133) * kernel: sctp: purge outqueue on stale COOKIE-ECHO handling (CVE-2026-52924) * kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239) * kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007) * kernel: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (CVE-2026-63921) * kernel: xfrm: input: hold netns during deferred transport reinjection (CVE-2026-63919) * kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink() (CVE-2026-63917) * kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582) * kernel: net: qrtr: restrict socket creation to the initial network namespace (CVE-2026-68294) * kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment (CVE-2026-68426) * kernel: scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer (CVE-2026-74556) * kernel: netfilter: flowtable: publish GC-visible tuple last (CVE-2026-74746) * kernel: RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp (CVE-2026-80864) * kernel: RDMA/rxe: Fix OOB in free_rd_atomic_resources() (CVE-2026-80863) Bug Fix(es) and Enhancement(s): * xfs corruption from [xfs_trans_cancel] during inode allocation (JIRA:RHEL-257185) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In ssh in OpenSSH before 10.6, a $ or \ character can occur in a command- line username, leading to injection.

These are all security issues fixed in the kernel-devel-7.2.9-1.1 package on the GA media of openSUSE Tumbleweed.

A use-after-free vulnerability in the Linux kernel's vsock/vmci subsystem was fixed by Red Hat. The flaw occurred during a peer reset connection in the handshake phase, causing improper socket cleanup and leading to a use-after-free condition detected by KASAN. This vulnerability has a high severity score of 8.8 and affects multiple Linux kernel versions prior to specific 5.15.x updates. Official kernel updates have been released to address this issue. Users should apply these updates and reboot to mitigate the vulnerability.

CVE-2026-106587 is a low-severity vulnerability in OpenSSH before version 10.6 where the configuration option value "none" is sometimes incorrectly interpreted as a filename instead of disabling a feature. This type confusion flaw can lead to unintended behavior in the sshd daemon.