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CVE-2022-3515

libksba: integer overflow may lead to remote code execution

A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.

CVSS 3.1 · 9.8 Critical EPSS 1.8% KEV · Not listed
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Gnupg Libksba Vs-desktop and 7 more
CVE-2022-41858

kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip

A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2023-22809

sudo: arbitrary file write with privileges of the RunAs user

In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a "--" argument that defeats a protection mechanism, e.g., an EDITOR='vim -- /path/to/extra/file' value.

CVSS 3.1 · 7.8 High EPSS 55.4% KEV · Not listed
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CVE-2021-33631

Kernel crash in EXT4 filesystem

Integer Overflow or Wraparound vulnerability in openEuler kernel on Linux (filesystem modules) allows Forced Integer Overflow.This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3, from 5.10.0-60.18.0 before 5.10.0-183.0.0.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-0394

kernel: NULL pointer dereference in rawv6_push_pending_frames

A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network subcomponent in the Linux kernel. This flaw causes the system to crash.

CVSS 3.1 · 5.5 Medium EPSS 1.0% KEV · Not listed
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CVE-2023-30456

kernel: KVM: nVMX: missing consistency checks for CR0 and CR4

An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-2162

kernel: UAF during login when accessing the shost ipaddress

A use-after-free vulnerability was found in iscsi_sw_tcp_session_create in drivers/scsi/iscsi_tcp.c in SCSI sub-component in the Linux Kernel. In this flaw an attacker could leak kernel internal information.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-28328

kernel: Denial of service issue in az6027 driver in drivers/media/usb/dev-usb/az6027.c

A NULL pointer dereference flaw was found in the az6027 driver in drivers/media/usb/dev-usb/az6027.c in the Linux Kernel. The message from user space is not checked properly before transferring into the device. This flaw allows a local user to crash the system or potentially cause a denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-1382

kernel: denial of service in tipc_conn_close

A data race flaw was found in the Linux kernel, between where con is allocated and con->sock is set. This issue leads to a NULL pointer dereference when accessing con->sock->sk in net/tipc/topsrv.c in the tipc protocol in the Linux kernel.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
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CVE-2023-1074

kernel: sctp: fail if no bound addresses can be used for a given scope

A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may occur when a user starts a malicious networking service and someone connects to this service. This could allow a local user to starve resources, causing a denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-31084

kernel: blocking operation in dvb_frontend_get_event and wait_event_interruptible

An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-2177

Kernel: NULL pointer dereference problem in sctp_sched_dequeue_common

A null pointer dereference issue was found in the sctp network protocol in net/sctp/stream_sched.c in Linux Kernel. If stream_in allocation is failed, stream_out is freed which would further be accessed. A local user could use this flaw to crash the system or potentially cause a denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-1195

kernel: use-after-free caused by invalid pointer hostname in fs/cifs/connect.c

A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL, leading to an invalid pointer request.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-0597

kernel: x86/mm: Randomize per-cpu entry area

A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. A local user could use this flaw to get access to some important data with expected location in memory.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-3161

kernel: fbcon: shift-out-of-bounds in fbcon_set_font()

A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-3022

kernel: IPv6: panic in fib6_rule_suppress when fib6_rule_lookup fails

A flaw was found in the IPv6 module of the Linux kernel. The arg.result was not used consistently in fib6_rule_lookup, sometimes holding rt6_info and other times fib6_info. This was not accounted for in other parts of the code where rt6_info was expected unconditionally, potentially leading to a kernel panic in fib6_rule_suppress.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2022-41903

Integer overflow in `git archive`, `git log --format` leading to RCE in git

Git is distributed revision control system. `git log` can display commits in an arbitrary format using its `--format` specifiers. This functionality is also exposed to `git archive` via the `export-subst` gitattribute. When processing the padding operators, there is a integer overflow in `pretty.c::format_and_pad_commit()` where a `size_t` is stored improperly as an `int`, and then added as an offset to a `memcpy()`. This overflow can be triggered directly by a user running a command which invokes the commit formatting machinery (e.g., `git log --format=...`). It may also be triggered indirectly through git archive via the export-subst mechanism, which expands format specifiers inside of files within the repository during a git archive. This integer overflow can result in arbitrary heap writes, which may result in arbitrary code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. Users who are unable to upgrade should disable `git archive` in untrusted repositories. If you expose git archive via `git daemon`, disable it by running `git config --global daemon.uploadArch false`.

CVSS 3.1 · 9.8 Critical EPSS 44.3% KEV · Not listed
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CVE-2022-3707

kernel: Double-free in split_2MB_gtt_entry when function intel_gvt_dma_map_guest_page failed

A double-free memory flaw was found in the Linux kernel. The Intel GVT-g graphics driver triggers VGA card system resource overload, causing a fail in the intel_gvt_dma_map_guest_page function. This issue could allow a local user to crash the system.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-3090

Out-of-bounds write in Linux kernel's ipvlan network driver

A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2023-3776

Use-after-free in Linux kernel's net/sched: cls_fw component

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

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