CVE-2026-58010

Glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal()

A flaw was found in GLib. An off-by-one error can occur in the gvs_tuple_is_normal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses > instead of >=, causing an out-of-bounds read of only 1 byte. This issue can cause a minor information disclosure of 1 byte and a denial of service when the out-of-bounds read crosses a page boundary.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Glib Ai Inference Server Cert Manager and 14 more

CVE-2025-14087

Glib: glib: buffer underflow in gvariant parser leads to heap corruption

A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap corruption, leading to a denial of service or potential code execution via a buffer-underflow in the GVariant parser when processing maliciously crafted input strings.

CVSS 3.1 · 5.6 Medium EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Glib Ai Inference Server Cert Manager and 14 more

CVE-2023-52355

Libtiff: tiffrasterscanlinesize64 produce too-big size and could cause oom

An out-of-memory flaw was found in libtiff that could be triggered by passing a crafted tiff file to the TIFFRasterScanlineSize64() API. This flaw allows a remote attacker to cause a denial of service via a crafted input with a size smaller than 379 KB.

CVSS 3.1 · 7.5 High EPSS 1.8% KEV · Not listed

Vendors

Libtiff Redhat

Products

Libtiff Ai Inference Server Discovery and 5 more

CVE-2026-71226

Libkcapi: memory corruption via uncanceled aio requests on error in libkcapi's one-shot aio path

Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Redhat Smuellerdd

Products

Enterprise Linux Enterprise Linux Eus Hardened Images and 7 more

CVE-2023-4147

Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free

A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Linux and 1 more

Products

Debian Linux Fedora Linux Kernel and 7 more

CVE-2024-2698

Freeipa: delegation rules allow a proxy service to impersonate any user to access another target service

A vulnerability was found in FreeIPA in how the initial implementation of MS-SFU by MIT Kerberos was missing a condition for granting the "forwardable" flag on S4U2Self tickets. Fixing this mistake required adding a special case for the check_allowed_to_delegate() function: If the target service argument is NULL, then it means the KDC is probing for general constrained delegation rules and not checking a specific S4U2Proxy request. In FreeIPA 4.11.0, the behavior of ipadb_match_acl() was modified to match the changes from upstream MIT Kerberos 1.20. However, a mistake resulting in this mechanism applies in cases where the target service argument is set AND where it is unset. This results in S4U2Proxy requests being accepted regardless of whether or not there is a matching service delegation rule.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Freeipa Redhat

Products

Freeipa Enterprise Linux Enterprise Linux Eus and 2 more

CVE-2023-5157

Mariadb: node crashes with transport endpoint is not connected mysqld got signal 6

A vulnerability was found in MariaDB. An OpenVAS port scan on ports 3306 and 4567 allows a malicious remote client to cause a denial of service.

CVSS 3.1 · 7.5 High EPSS 2.3% KEV · Not listed

Vendors

Fedoraproject Mariadb Redhat

Products

Fedora Mariadb Enterprise Linux and 15 more

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-2023-4091

Samba: smb clients can truncate files with read-only permissions

A vulnerability was discovered in Samba, where the flaw allows SMB clients to truncate files, even with read-only permissions when the Samba VFS module "acl_xattr" is configured with "acl_xattr:ignore system acls = yes". The SMB protocol allows opening files when the client requests read-only access but then implicitly truncates the opened file to 0 bytes if the client specifies a separate OVERWRITE create disposition request. The issue arises in configurations that bypass kernel file system permissions checks, relying solely on Samba's permissions.

CVSS 3.1 · 6.5 Medium EPSS 1.3% KEV · Not listed

Vendors

Fedoraproject Redhat Samba

Products

Fedora Enterprise Linux Enterprise Linux Eus and 5 more

CVE-2023-42669

Samba: "rpcecho" development server allows denial of service via sleep() call on ad dc

A vulnerability was found in Samba's "rpcecho" development server, a non-Windows RPC server used to test Samba's DCE/RPC stack elements. This vulnerability stems from an RPC function that can be blocked indefinitely. The issue arises because the "rpcecho" service operates with only one worker in the main RPC task, allowing calls to the "rpcecho" server to be blocked for a specified time, causing service disruptions. This disruption is triggered by a "sleep()" call in the "dcesrv_echo_TestSleep()" function under specific conditions. Authenticated users or attackers can exploit this vulnerability to make calls to the "rpcecho" server, requesting it to block for a specified duration, effectively disrupting most services and leading to a complete denial of service on the AD DC. The DoS affects all other services as "rpcecho" runs in the main RPC task.

CVSS 3.1 · 6.5 Medium EPSS 1.9% KEV · Not listed

Vendors

Redhat Samba

Products

Enterprise Linux Enterprise Linux Eus Enterprise Linux For Ibm Z Systems and 8 more

CVE-2023-4911

Glibc: buffer overflow in ld.so leading to privilege escalation

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.

CVSS 3.1 · 7.8 High EPSS 63.8% KEV · Listed

Vendors

Canonical Debian Fedoraproject and 4 more

Products

Ubuntu Linux Debian Linux Fedora and 49 more

CVE-2023-3961

Samba: smbd allows client access to unix domain sockets on the file system as root

A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.

CVSS 3.1 · 9.1 Critical EPSS 2.7% KEV · Not listed

Vendors

Fedoraproject Redhat Samba

Products

Fedora Enterprise Linux Enterprise Linux Eus and 5 more

CVE-2023-3899

Subscription-manager: inadequate authorization of com.redhat.rhsm1 d-bus interface allows local users to modify configuration

A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an unconfined root.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Fedoraproject Redhat

Products

Fedora Enterprise Linux Enterprise Linux Desktop and 22 more

CVE-2023-3758

Sssd: race condition during authorization leads to gpo policies functioning inconsistently

A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This may lead to improper authorization issues, granting or denying access to resources inappropriately.

CVSS 3.1 · 7.1 High EPSS 1.0% KEV · Not listed

Vendors

Fedoraproject Redhat

Products

Fedora Sssd Codeready Linux Builder and 23 more

CVE-2023-4813

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

A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

CVSS 3.1 · 5.9 Medium EPSS 1.9% KEV · Not listed

Vendors

Fedoraproject Gnu Netapp and 1 more

Products

Fedora Glibc Active Iq Unified Manager and 21 more

CVE-2023-3972

Insights-client: unsafe handling of temporary files and directories

A vulnerability was found in insights-client. This security issue occurs because of insecure file operations or unsafe handling of temporary files and directories that lead to local privilege escalation. Before the insights-client has been registered on the system by root, an unprivileged local user or attacker could create the /var/tmp/insights-client directory (owning the directory with read, write, and execute permissions) on the system. After the insights-client is registered by root, an attacker could then control the directory content that insights are using by putting malicious scripts into it and executing arbitrary code as root (trivially bypassing SELinux protections because insights processes are allowed to disable SELinux system-wide).

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Enterprise Linux Enterprise Linux Aus Enterprise Linux Desktop and 21 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-2023-52356

Libtiff: segment fault in libtiff in tiffreadrgbatileext() leading to denial of service

A segment fault (SEGV) flaw was found in libtiff that could be triggered by passing a crafted tiff file to the TIFFReadRGBATileExt() API. This flaw allows a remote attacker to cause a heap-buffer overflow, leading to a denial of service.

CVSS 3.1 · 7.5 High EPSS 2.7% KEV · Not listed

Vendors

Apple Debian Libtiff and 1 more

Products

Ipados Iphone Os Macos and 13 more

CVE-2024-6387

Openssh: regresshion - race condition in ssh allows rce/dos

A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.

CVSS 3.1 · 8.1 High EPSS 99.5% KEV · Not listed

Vendors

Almalinux Amazon Apple and 10 more

Products

Almalinux Amazon Linux Macos and 83 more

CVE-2026-5419

Gnutls: gnutls: information disclosure via timing side-channel in pkcs#7 padding removal

A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of information disclosure.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed

Vendors

Gnu Redhat

Products

Gnutls Cert Manager Discovery and 11 more