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CVE-2022-20566

kernel: possible use after free due to improper locking in l2cap_chan_put of l2cap_core

In l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-165329981References: Upstream kernel

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2022-4450

Double free after calling PEM_read_bio_ex

The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload data. If the function succeeds then the "name_out", "header" and "data" arguments are populated with pointers to buffers containing the relevant decoded data. The caller is responsible for freeing those buffers. It is possible to construct a PEM file that results in 0 bytes of payload data. In this case PEM_read_bio_ex() will return a failure code but will populate the header argument with a pointer to a buffer that has already been freed. If the caller also frees this buffer then a double free will occur. This will most likely lead to a crash. This could be exploited by an attacker who has the ability to supply malicious PEM files for parsing to achieve a denial of service attack. The functions PEM_read_bio() and PEM_read() are simple wrappers around PEM_read_bio_ex() and therefore these functions are also directly affected. These functions are also called indirectly by a number of other OpenSSL functions including PEM_X509_INFO_read_bio_ex() and SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL internal uses of these functions are not vulnerable because the caller does not free the header argument if PEM_read_bio_ex() returns a failure code. These locations include the PEM_read_bio_TYPE() functions as well as the decoders introduced in OpenSSL 3.0. The OpenSSL asn1parse command line application is also impacted by this issue.

CVSS 3.1 · 7.5 High EPSS 28.6% KEV · Not listed
CVE-2022-20421

kernel: use after free in binder_inc_ref_for_node in drivers/android/binder.c due

In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-239630375References: Upstream kernel

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-109728

Use-after-free in the DOM: Animation component

Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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CVE-2026-109943

FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order

FreeRDP 3.29.0 before 3.32.0 contains a double free in the client's async-update message proxy, which shallow-copies the parser-owned PolygonSC or PolygonCB points array when numPoints is zero, so both the queue consumer and parser cleanup free it. A malicious RDP server can send a point-bearing polygon order followed by a zero-point order to crash a client with +async-update enabled.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-109676

FreeRDP 3.0.0-beta1 before 3.32.0 Use-After-Free via Smartcard Connect

FreeRDP from 3.0.0-beta1 before 3.32.0 contains a use-after-free vulnerability in smartcard handling that allows attackers to access a freed smartcard handle object after an invalid connect operation. Attackers can trigger an invalid smartcard connect operation to cause reuse of the freed handle, leading to memory corruption or crashes.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2022-4095

kernel: Use-after-Free/Double-Free bug in read_bbreg_hdl in drivers/staging/rtl8712/rtl8712_cmd.c

A use-after-free flaw was found in Linux kernel before 5.19.2. This issue occurs in cmd_hdl_filter in drivers/staging/rtl8712/rtl8712_cmd.c, allowing an attacker to launch a local denial of service attack and gain escalation of privileges.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2022-3649

Linux Kernel BPF inode.c nilfs_new_inode use after free

A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_new_inode of the file fs/nilfs2/inode.c of the component BPF. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211992.

CVSS 3.1 · 3.1 Low EPSS 1.1% KEV · Not listed
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CVE-2022-3635

Linux Kernel IPsec idt77252.c tst_timer use after free

A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue is the function tst_timer of the file drivers/atm/idt77252.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. VDB-211934 is the identifier assigned to this vulnerability.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2022-3625

Linux Kernel IPsec devlink.c devlink_param_get use after free

A vulnerability was found in Linux Kernel. It has been classified as critical. This affects the function devlink_param_set/devlink_param_get of the file net/core/devlink.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier VDB-211929 was assigned to this vulnerability.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
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CVE-2022-3586

kernel: net scheduler use-after-free information disclosure vulnerability

A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2022-3565

Linux Kernel Bluetooth l1oip_core.c del_timer use after free

A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue is the function del_timer of the file drivers/isdn/mISDN/l1oip_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211088.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
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CVE-2022-3564

Linux Kernel Bluetooth l2cap_core.c l2cap_reassemble_sdu use after free

A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the function l2cap_reassemble_sdu of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211087.

CVSS 3.1 · 5.5 Medium EPSS 1.5% KEV · Not listed
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Debian Linux Netapp and 1 more
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CVE-2022-3545

Linux Kernel IPsec nfp_cppcore.c area_cache_get use after free

A vulnerability has been found in Linux Kernel and classified as critical. Affected by this vulnerability is the function area_cache_get of the file drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier VDB-211045 was assigned to this vulnerability.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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Debian Linux Netapp and 1 more
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CVE-2022-3534

Linux Kernel libbpf btf_dump.c btf_dump_name_dups use after free

A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and 6.2 is sufficient to resolve this issue. The identifier of the patch is c61650b869e0b6fb0c0a28ed42d928eea969afc8/fbe08093fb2334549859829ef81d42570812597d/8c64a8e76eb85d422af5ec60ccbf26e3ead8c333/a733bf10198eb5bb927890940de8ab457491ed3b/93c660ca40b5d2f7c1b1626e955a8e9fa30e0749. You should upgrade the affected component.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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CVE-2022-2978

kernel: use-after-free in nilfs_mdt_destroy

A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2022-2959

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in pipe_resize_ring(). The specific flaw exists within the handling of pipe buffers. The issue results from the lack of proper locking when performing operations on an object. This flaw allows a local user to crash the system or escalate their privileges on the system.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
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CVE-2022-2588

kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

CVSS 3.1 · 5.3 Medium EPSS 5.9% KEV · Not listed
CVE-2022-2509

gnutls: Double free during gnutls_pkcs7_verify

A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.

CVSS 3.1 · 7.5 High EPSS 2.3% KEV · Not listed
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Debian Fedoraproject Gnu and 1 more
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