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CVE-2023-4527

Glibc: stack read overflow in getaddrinfo in no-aaaa mode

A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash.

CVSS 3.1 · 6.5 Medium EPSS 1.7% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Glibc H300s and 30 more
CVE-2023-4806

Glibc: potential use-after-free in getaddrinfo()

A flaw has been identified in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.

CVSS 3.1 · 5.9 Medium EPSS 1.6% KEV · Not listed
Vendors
Fedoraproject Gnu Redhat
Products
Fedora Glibc Codeready Linux Builder Eus and 22 more
CVE-2023-5870

Postgresql: role pg_signal_backend can signal certain superuser processes.

A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.

CVSS 3.1 · 2.2 Low EPSS 2.6% KEV · Not listed
Vendors
Postgresql Redhat
Products
Postgresql Advanced Cluster Security Codeready Linux Builder Eus and 20 more
CVE-2023-6536

Kernel: null pointer dereference in __nvmet_req_complete

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.

CVSS 3.1 · 6.5 Medium EPSS 1.5% KEV · Not listed
Vendors
Debian Linux Redhat
Products
Debian Linux Linux Kernel Codeready Linux Builder Eus and 18 more
CVE-2023-6535

Kernel: null pointer dereference in nvmet_tcp_execute_request

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.

CVSS 3.1 · 6.5 Medium EPSS 1.5% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Codeready Linux Builder Eus Codeready Linux Builder Eus For Power Little Endian Eus and 17 more
CVE-2023-6356

Kernel: null pointer dereference in nvmet_tcp_build_iovec

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.

CVSS 3.1 · 6.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Debian Linux Redhat
Products
Debian Linux Linux Kernel Codeready Linux Builder Eus and 18 more
CVE-2023-5868

Postgresql: memory disclosure in aggregate function calls

A memory disclosure vulnerability was found in PostgreSQL that allows remote users to access sensitive information by exploiting certain aggregate function calls with 'unknown'-type arguments. Handling 'unknown'-type values from string literals without type designation can disclose bytes, potentially revealing notable and confidential information. This issue exists due to excessive data output in aggregate function calls, enabling remote users to read some portion of system memory.

CVSS 3.1 · 4.3 Medium EPSS 2.8% KEV · Not listed
Vendors
Postgresql Redhat
Products
Postgresql Advanced Cluster Security Codeready Linux Builder Eus and 20 more
CVE-2024-1488

Unbound: unrestricted reconfiguration enabled to anyone that may lead to local privilege escalation

A vulnerability was found in Unbound due to incorrect default permissions, allowing any process outside the unbound group to modify the unbound runtime configuration. If a process can connect over localhost to port 8953, it can alter the configuration of unbound.service. This flaw allows an unprivileged attacker to manipulate a running instance, potentially altering forwarders, allowing them to track all queries forwarded by the local resolver, and, in some cases, disrupting resolving altogether.

CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat
Products
Unbound Codeready Linux Builder Codeready Linux Builder Eus and 21 more
CVE-2023-5869

Postgresql: buffer overrun from integer overflow in array modification

A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.

CVSS 3.1 · 8.8 High EPSS 4.3% KEV · Not listed
Vendors
Postgresql Redhat
Products
Postgresql Advanced Cluster Security Codeready Linux Builder Eus and 25 more
CVE-2022-0435

kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS

A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed. This flaw allows a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network.

CVSS 3.1 · 8.8 High EPSS 67.8% KEV · Not listed
Vendors
Fedoraproject Linux Netapp and 2 more
Products
Fedora Linux Kernel H300e and 37 more
CVE-2022-0330

kernel: possible privileges escalation due to missing TLB flush

A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Linux Netapp and 1 more
Products
Fedora Linux Kernel H300e and 49 more