Search vulnerabilities

Use the Query Builder to create your own search query, or check out the documentation to learn the search syntax.

Results 5,468

Export CSV
CVE-2023-3255

Qemu: vnc: infinite loop in inflate_buffer() leads to denial of service

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.

CVSS 3.1 · 6.5 Medium EPSS 1.9% KEV · Not listed
Vendors
Fedoraproject Qemu Redhat
Products
Fedora Qemu Advanced Virtualization and 2 more
CVE-2023-34966

Samba: infinite loop in mdssvc rpc service for spotlight

An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition.

CVSS 3.1 · 7.5 High EPSS 62.4% KEV · Not listed
Vendors
Debian Fedoraproject Redhat and 1 more
Products
Debian Linux Fedora Enterprise Linux and 5 more
CVE-2023-4535

Opensc: out-of-bounds read in myeid driver handling encryption using symmetric keys

An out-of-bounds read vulnerability was found in OpenSC packages within the MyEID driver when handling symmetric key encryption. Exploiting this flaw requires an attacker to have physical access to the computer and a specially crafted USB device or smart card. This flaw allows the attacker to manipulate APDU responses and potentially gain unauthorized access to sensitive data, compromising the system's security.

CVSS 3.1 · 4.5 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Opensc Project Redhat
Products
Fedora Opensc Enterprise Linux and 1 more
CVE-2023-3106

Kernel: netlink socket crash (null pointer deref) in netlink_dump function

A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.

CVSS 3.1 · 6.6 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Linux Redhat
Products
Fedora Linux Kernel Enterprise Linux and 1 more
CVE-2023-39198

Kernel: qxl: race condition leading to use-after-free in qxl_mode_dumb_create()

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Linux Redhat
Products
Fedora Linux Kernel Enterprise Linux and 1 more
CVE-2023-43788

Libxpm: out of bounds read in xpmcreatexpmimagefrombuffer()

A vulnerability was found in libXpm due to a boundary condition within the XpmCreateXpmImageFromBuffer() function. This flaw allows a local attacker to trigger an out-of-bounds read error and read the contents of memory on the system.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat X.org
Products
Fedora Enterprise Linux Rhel Els and 1 more
CVE-2023-3347

Samba: smb2 packet signing is not enforced when "server signing = required" is set

A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not enforced if an admin configured "server signing = required" or for SMB2 connections to Domain Controllers where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-the-middle attack, by intercepting the network traffic and modifying the SMB2 messages between client and server, affecting the integrity of the data.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Samba
Products
Fedora Enterprise Linux Rhel Els and 2 more
CVE-2023-34968

Samba: spotlight server-side share path disclosure

A path disclosure vulnerability was found in Samba. As part of the Spotlight protocol, Samba discloses the server-side absolute path of shares, files, and directories in the results for search queries. This flaw allows a malicious client or an attacker with a targeted RPC request to view the information that is part of the disclosed path.

CVSS 3.1 · 5.3 Medium EPSS 1.3% KEV · Not listed
Vendors
Debian Fedoraproject Redhat and 1 more
Products
Debian Linux Fedora Enterprise Linux and 5 more
CVE-2023-34967

Samba: type confusion in mdssvc rpc service for spotlight

A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the mdssvc protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a caller may trigger a crash in talloc_get_size() when talloc detects that the passed-in pointer is not a valid talloc pointer. With an RPC worker process shared among multiple client connections, a malicious client or attacker can trigger a process crash in a shared RPC mdssvc worker process, affecting all other clients this worker serves.

CVSS 3.1 · 5.3 Medium EPSS 61.2% KEV · Not listed
Vendors
Debian Fedoraproject Redhat and 1 more
Products
Debian Linux Fedora Enterprise Linux and 5 more
CVE-2026-68744

Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply

A flaw was found in SSSD. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Sssd
Products
Sssd Enterprise Linux Openshift and 3 more
CVE-2026-104029

Sssd: sssd: denial of service via out-of-bounds read in autofs responder

A flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS).

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Sssd
Products
Sssd Enterprise Linux Openshift and 3 more
CVE-2024-1454

Opensc: memory use after free in authentic driver when updating token info

The use-after-free vulnerability was found in the AuthentIC driver in OpenSC packages, occuring in the card enrolment process using pkcs15-init when a user or administrator enrols or modifies cards. An attacker must have physical access to the computer system and requires a crafted USB device or smart card to present the system with specially crafted responses to the APDUs, which are considered high complexity and low severity. This manipulation can allow for compromised card management operations during enrolment.

CVSS 3.1 · 3.4 Low EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Opensc Project Redhat
Products
Fedora Opensc Enterprise Linux and 1 more
CVE-2024-0232

Sqlite: use-after-free bug in jsonparseaddnodearray

A heap use-after-free issue has been identified in SQLite in the jsonParseAddNodeArray() function in sqlite3.c. This flaw allows a local attacker to leverage a victim to pass specially crafted malicious input to the application, potentially causing a crash and leading to a denial of service.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Sqlite
Products
Extra Packages For Enterprise Linux Fedora Enterprise Linux and 3 more
CVE-2024-0217

Packagekitd: use-after-free in idle function callback

A use-after-free flaw was found in PackageKitd. In some conditions, the order of cleanup mechanics for a transaction could be impacted. As a result, some memory access could occur on memory regions that were previously freed. Once freed, a memory region can be reused for other allocations and any previously stored data in this memory region is considered lost.

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Packagekit Project Redhat
Products
Fedora Packagekit Enterprise Linux and 1 more
CVE-2023-6918

Libssh: missing checks for return values for digests

A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.

CVSS 3.1 · 3.7 Low EPSS 1.4% KEV · Not listed
Vendors
Fedoraproject Libssh Redhat
Products
Fedora Libssh Enterprise Linux and 1 more
CVE-2023-6679

Kernel: null pointer dereference in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c

A null pointer dereference vulnerability was found in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c in the Digital Phase Locked Loop (DPLL) subsystem in the Linux kernel. This issue could be exploited to trigger a denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Linux Redhat
Products
Fedora Linux Kernel Enterprise Linux and 2 more
CVE-2023-6004

Libssh: proxycommand/proxyjump features allow injection of malicious code through hostname

A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.

CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Libssh Redhat
Products
Fedora Libssh Enterprise Linux and 1 more
CVE-2026-90462

Sssd: sssd: fail-open in ldap ppolicy access check allows continued authorization

A flaw was found in SSSD. When configured with the LDAP access provider and `ldap_access_order` including `ppolicy` or `lockout`, a fail-open condition in the LDAP ppolicy access check can occur if a user lookup returns zero results. This can incorrectly return success and cache an allow decision, permitting continued authorization for a deleted or deprovisioned user. A remote attacker with prior valid account context could exploit this to maintain access to information and potentially make limited modifications to resources that should no longer be available.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Sssd
Products
Sssd Enterprise Linux Openshift and 3 more
CVE-2026-88252

Sssd: sssd: denial of service via responder connection retry loop during file descriptor exhaustion

A flaw was found in sssd. A local user can cause a Denial of Service (DoS) by exhausting the responder service's available file descriptors (system handles used for open connections). By opening and maintaining many concurrent connections to a responder socket while continuing to queue new connection attempts, an attacker can trigger an unthrottled retry loop. This condition leads to high CPU utilization and stalls the service, preventing legitimate identity and authentication requests from being processed.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Sssd
Products
Sssd Enterprise Linux Openshift and 3 more