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CVE-2022-2327

Use-after-free in io_uring ad work_flags in Linux Kernel

io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel H300s H300s Firmware and 8 more
CVE-2022-1882

kernel: use-after-free in free_pipe_info() could lead to privilege escalation

A use-after-free flaw was found in the Linux kernel’s pipes functionality in how a user performs manipulations with the pipe post_one_notification() after free_pipe_info() that is already called. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel H300e H300e Firmware and 15 more
CVE-2022-1679

kernel: use-after-free in ath9k_htc_probe_device() could cause an escalation of privileges

A use-after-free flaw was found in the Linux kernel’s Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp and 1 more
Products
Debian Linux Linux Kernel H300e and 18 more
CVE-2022-1184

kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image

A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component. This flaw allows a local attacker with a user privilege to cause a denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 3 more
CVE-2025-27723

Use-After-Free in Intel Ethernet 800 Series Kernel Driver Enables Local Denial of Service

Use after free for some Linux kernel driver for the Intel(R) Ethernet 800 series before version 2.3.14 within Ring 0: Kernel may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Intel
Products
Ethernet 800-series
CVE-2021-33574

glibc: mq_notify does not handle separately allocated thread attributes

The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact.

CVSS 3.1 · 9.8 Critical EPSS 3.5% KEV · Not listed
Vendors
Debian Fedoraproject Gnu and 2 more
Products
Debian Linux Fedora Glibc and 18 more
CVE-2021-28041

openssh: double-free memory corruption may lead to arbitrary code execution

ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.

CVSS 3.1 · 7.1 High EPSS 3.5% KEV · Not listed
Vendors
Fedoraproject Netapp Openbsd and 1 more
Products
Fedora Cloud Backup Hci Compute Node and 8 more
CVE-2021-27645

glibc: Use-after-free in addgetnetgrentX function in netgroupcache.c

The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.

CVSS 3.1 · 2.5 Low EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Gnu and 1 more
Products
Debian Linux Fedora Glibc and 1 more
CVE-2021-22945

curl: use-after-free and double-free in MQTT sending

When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.

CVSS 3.1 · 9.1 Critical EPSS 6.7% KEV · Not listed
Vendors
Apple Debian Fedoraproject and 5 more
Products
Macos Debian Linux Fedora and 22 more
CVE-2021-22901

curl: Use-after-free in TLS session handling when using OpenSSL TLS backend

curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection. A malicious server can use this in rare unfortunate circumstances to potentially reach remote code execution in the client. When libcurl at run-time sets up support for TLS 1.3 session tickets on a connection using OpenSSL, it stores pointers to the transfer in-memory object for later retrieval when a session ticket arrives. If the connection is used by multiple transfers (like with a reused HTTP/1.1 connection or multiplexed HTTP/2 connection) that first transfer object might be freed before the new session is established on that connection and then the function will access a memory buffer that might be freed. When using that memory, libcurl might even call a function pointer in the object, making it possible for a remote code execution if the server could somehow manage to get crafted memory content into the correct place in memory.

CVSS 3.1 · 8.1 High EPSS 63.5% KEV · Not listed
Vendors
Haxx Netapp Oracle and 3 more
Products
Curl Active Iq Unified Manager Cloud Backup and 32 more
CVE-2021-20232

gnutls: Use after free in client_send_params in lib/ext/pre_shared_key.c

A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potential consequences.

CVSS 3.1 · 9.8 Critical EPSS 3.4% KEV · Not listed
Vendors
Fedoraproject Gnu Redhat
Products
Fedora Gnutls Enterprise Linux
CVE-2021-20227

sqlite: potential use-after-free bug when processing a subquery with both a correlated WHERE clause and a "HAVING 0" clause and where the parent query is an aggregate

A flaw was found in SQLite's SELECT query functionality (src/select.c). This flaw allows an attacker who is capable of running SQL queries locally on the SQLite database to cause a denial of service or possible code execution by triggering a use-after-free. The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Oracle Sqlite
Products
Communications Network Charging And Control Enterprise Manager For Oracle Database Jd Edwards Enterpriseone Tools and 4 more
CVE-2021-3518

libxml2: Use-after-free in xmlXIncludeDoProcess() in xinclude.c

There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.

CVSS 3.1 · 8.8 High EPSS 21.9% KEV · Not listed
Vendors
Debian Fedoraproject Netapp and 3 more
Products
Debian Linux Fedora Active Iq Unified Manager and 17 more
CVE-2021-3516

libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c

There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.

CVSS 3.1 · 7.8 High EPSS 2.0% KEV · Not listed
Vendors
Debian Fedoraproject Netapp and 3 more
Products
Debian Linux Fedora Clustered Data Ontap and 7 more
CVE-2020-36225

openldap: Double free in the saslAuthzTo processing

A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the saslAuthzTo processing, resulting in denial of service.

CVSS 3.1 · 7.5 High EPSS 4.4% KEV · Not listed
Vendors
Apple Debian Openldap
Products
Macos Debian Linux Openldap
CVE-2020-36223

openldap: Out-of-bounds read in Values Return Filter

A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter control handling, resulting in denial of service (double free and out-of-bounds read).

CVSS 3.1 · 7.5 High EPSS 4.2% KEV · Not listed
Vendors
Apple Debian Openldap
Products
Mac Os X Macos Debian Linux and 1 more