Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel 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 available for...

kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv

A flaw was found in the Linux kernel's RDMA/rxe component. The rxercv function does not adequately validate the BTH pad and ICRC fields of incoming packets before calculating the payload size. A remote attacker could exploit this by sending a specially crafted short packet or a packet with a forg...

kernel: smb: client: fix double-free in SMB2_flush() replay

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability, a double-free error within the SMB2flush replay mechanism, occurs when the system attempts to free a memory buffer twice. A malicious SMB server could exploit this by sending a specially crafted flush...

kernel: ipv6: fix use-after-free in ip6_finish_output2()

A flaw was found in the Linux kernel's IPv6 networking stack. A use-after-free vulnerability exists in the ip6finishoutput2 function, where a cached pointer to the IPv6 destination address can become stale after memory reallocation. An attacker could potentially exploit this to leak sensitive...

kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing

A flaw was found in the Linux kernel's Soft RoCE RDMA/rxe driver. An unauthenticated remote attacker can send a specially crafted UDP packet with an unknown opcode to trigger an out-of-bounds read. This vulnerability can lead to a kernel panic, effectively causing a Denial of Service DoS on the...

kernel: RDMA/rxe: Fix OOB in free_rd_atomic_resources()

A flaw was found in the Linux kernel's RDMA/rxe component. A local user could exploit a memory corruption vulnerability in the freerdatomicresources function by updating the maxdestrdatomic value before the old array is properly freed, leading to an out-of-bounds write. This issue can cause a...

kernel: RDMA/rxe: Fix race condition in QP timer handlers

A flaw was found in the Linux kernel's Remote Direct Memory Access RDMA RXE component. A race condition exists between the retransmittimer and rxedestroyqp functions. This can cause a Queue Pair QP reference count to underflow, leading to a use-after-free vulnerability. A local attacker could...

kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap

A flaw was found in the Linux kernel's RDMA/rxe component. A race condition in the rxemmap function, which manages memory for Remote Direct Memory Access RDMA operations, can lead to a use-after-free vulnerability. A local attacker could exploit this timing issue to cause a system crash, resultin...

Security update 5.2.1 for Multi-Linux Manager Client Tools

This update fixes the following issues: golang-github-prometheus-prometheus was updated to version 3.13.2: Security issues: CVE-2026-39821: Fixed validation bypass and privilege escalation in Punycode label handling bsc1266608 CVE-2026-56852: Fixed infinite loop on truncated or invalid UTF-8 inpu...

CVE-2026-98173

A flaw was found in the Linux kernel's SMB client. A race condition in multichannel connection management allows network interface structures to be freed while still in use during concurrent interface refreshes. A malicious server or an attacker triggering interface updates can exploit this...

CVE-2019-19012

CVE-2019-19012 在 Oniguruma 6.x（低于 6.9.4rc2）的 regexec.c 中的 searchinrange 函数中存在一个整数溢出，导致越界读取，且该读取的偏移量可由攻击者控制。（仅影响 32 位编译版本）。远程攻击者可通过精心构造的正则表达式造成拒绝服务或信息泄露，或可能产生其他未明确的危害。 研究人员：ManhND of The Tarantula Team, VinCSS a member of Vingroup 什么是 Oniguruma Oniguruma 由 K. Kosako 开发，是一个采用 BSD...

Vulnerabilities present in Cisco NX-OS Software

Cisco has addressed several vulnerabilities in the Cisco NX-OS Software. These vulnerabilities concern various components of the Cisco NX-OS Software. - A vulnerability in the Python interpreter allows a malicious local attacker with low privileges to escape the Python sandbox and execute arbitra...

google.golang.org/grpc: gRPC-Go: Denial of Service via malformed RPC requests

A flaw was found in gRPC-Go. Servers created with xds.NewGRPCServer can be exploited by a remote client sending a malformed RPC request that lacks the required :authority or Host headers. This can trigger an index-out-of-bounds panic, leading to the termination of the entire server process and a...

Important: Red Hat Security Advisory: opentelemetry-collector security update

An update for opentelemetry-collector is now available for Red Hat Enterprise Linux 9. 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 available for each...

ethical-hacking-CVE-2011-2523

道德黑客 | 评估 1 实际漏洞测试 - CVE-2011-2523 vsftpd 2.3.4 后门 模块： - 道德黑客 大学： 伦敦城市大学 课程： 网络安全与取证科学荣誉学士 法律免责声明 所有活动仅在受控的隔离虚拟实验室中进行，仅供教育目的。没有针对真实世界的系统。所有工作均遵守1990年《计算机滥用法》。 实验室环境 攻击机操作系统：Kali Linux 主机 攻击机 IP：192.168.56.1 vboxnet0 靶机虚拟机：Metasploitable2 靶机 IP：192.168.56.103 虚拟机管理程序：Oracle VirtualBox 网络模式：仅主机...

CVE-2019-20933

CVE-2019-20933 InfluxDB anterior a la versión 1.7.6 tiene una vulnerabilidad de omisión de autenticación en la función authenticate en services/httpd/handler.go porque un token JWT puede tener un SharedSecret vacío también conocido como secreto compartido. see...

CVE-2026-85423

A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0. An API endpoint within the data collector service fails to perform authentication or authorization checks on incoming requests. An attacker with network access to the service can instruct the...

CVE-2026-85487

A path traversal vulnerability exists in the HTTP service component of Brocade ASCG versions before 3.5.0. An unauthenticated attacker on the local network could send a manipulated API request to the service endpoint bypassing path restrictions to arbitrary file read, file write, or file deletion...

CVE-2026-85489

An authentication flaw exists in the Brocade ASCG administrative management service component. An unauthenticated network user can issue direct API requests to perform privileged actions, including accessing sensitive system configuration mapping data, modifying managed device inventories, and...

CVE-2026-85421

A critical security vulnerability has been identified in Brocade ASCG versions before 3.5.0. The HTTPS service fails to properly enforce authentication or access control checks on incoming requests. An unauthenticated attacker with network access can issue control commands, alter cluster states,...