UBUNTU-CVE-2023-38322

An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a dobinauth NULL pointer dereference that be triggered with a crafted GET HTTP request with a missing User-Agent HTTP header. Triggering this issue results in crashing OpenNDS a Denial-of-Service condition. The issue...

OpenNDS Code Issues Vulnerabilities

openNDS is openNDS open source a high-performance, small footprint portal system. A code issue vulnerability exists in OpenNDS versions prior to 10.1.2 that stems from the presence of a NULL pointer dereference, which can be exploited by an attacker to cause a denial of service...

kernel: Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()"

In the Linux kernel, the following vulnerability has been resolved: Revert "usb: typec: ucsi: add a common function ucsiunregisterconnectors" The recent commit 87d0e2f41b8c "usb: typec: ucsi: add a common function ucsiunregisterconnectors" introduced a regression that caused NULL dereference at...

kernel: drm/amd/display: Fix potential null-deref in dm_resume

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential null-deref in dmresume Why Fixing smatch error: dmresume error: we previously assumed 'aconnector-dclink' could be null How Check if dclink null at the beginning of the loop, so further checks can b...

kernel: wifi: fix potential NULL-ptr deref after clone

A flaw was found in the Linux kernel’s iwlwifi mei driver. When the driver attempts to clone a socket bufferand that operation fails, it may erroneously dereference a NULL pointer, leading to a kernel crash or denial of service. An unprivileged local user may be able to trigger this flaw by...

kernel: net: fix NULL pointer in skb_segment_list

A flaw was found in the Linux kernel's net subsystem. A NULL pointer dereference can be triggered when a specific sequence of network events occurs due to an improper check, resulting in a denial of service...

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...

libssh security update

0.10.4-11 - Fix loglevel regression - Related: rhbz2182252, rhbz2189740 0.10.4.10 - Fix null dereference issues found by covscan - Related: rhbz2182252, rhbz2189740 0.10.4-9 - Fix CVE-2023-1667 and CVE-2023-2283 - Fix issues found by cosvcan - Resolves: rhbz2182252, rhbz2189740...

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.

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Null Dereference

libjasper.so is vulnerable to Null dereferencing. The vulnerability occurs due to a lack of validation performed while processing specially crafted image files. An attacker can trigger a crash via a specially crafted image file which could lead to DoS...

kernel: raw: Fix NULL deref in raw_get_next()

In the Linux kernel, the following vulnerability has been resolved: raw: Fix NULL deref in rawgetnext. Dae R. Jeong reported a NULL deref in rawgetnext 0. It seems that the repro was running these sequences in parallel so that one thread was iterating on a socket that was being freed in another...

kernel: watch_queue: Fix NULL dereference in error cleanup

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Fix NULL dereference in error cleanup In watchqueuesetsize, the error cleanup code doesn't take account of the fact that freepage can't handle a NULL pointer when trying to free up buffer pages that did get allocated...

kernel: dm stats: check for and propagate alloc_percpu failure

In the Linux kernel, the following vulnerability has been resolved: dm stats: check for and propagate allocpercpu failure Check allocprecpu's return value and return an error from dmstatsinit if it fails. Update allocdev to fail if dmstatsinit does. Otherwise, a NULL pointer dereference will occu...

kernel: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q-elevator in blkmqelvswitchnone After grabbing q-sysfslock, q-elevator may become NULL because of elevator switch. Fix the NULL dereference on q-elevator by checking it with lock...

kernel: drm/amdgpu: Fix size validation for non-exclusive domains (v4)

A NULL pointer dereference flaw was found in the Linux kernel's AMD GPU driver in the buffer object size validation logic. A local user on systems with AMD graphics hardware can trigger this issue by requesting memory allocation in non-exclusive domains when the Translation Table Manager domain...

PT-2025-41040

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the drm/amd/display module, specifically within the dm resume function. This issue involves a potential null dereference, identified by a smatch error...

QEMU: VNC: improper I/O watch removal in TLS handshake can lead to remote unauthenticated denial of service

A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QE...

Ubuntu 16.04 ESM / 18.04 ESM : Mosquitto vulnerability (USN-4823-1)

The remote Ubuntu 16.04 ESM / 18.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-4823-1 advisory. It was discovered that Mosquitto incorrectly handled certain inputs. A remote attacker could possibly use this issue to cause a denial of service...

CLSA-2023-1697744503 Fix of 7 CVEs

CVE-url: https://ubuntu.com/security/CVE-2023-42755 - net/sched: Retire rsvp classifier CVE-url: https://ubuntu.com/security/CVE-2023-39194 - net: xfrm: Fix xfrmaddressfilter OOB read CVE-url: https://ubuntu.com/security/CVE-2023-39192 - netfilter: xtu32: validate user space input CVE-url:...

CLSA-2023-1697744372 Fix of 7 CVEs

CVE-url: https://ubuntu.com/security/CVE-2023-42755 - net/sched: Retire rsvp classifier CVE-url: https://ubuntu.com/security/CVE-2023-39194 - net: xfrm: Fix xfrmaddressfilter OOB read CVE-url: https://ubuntu.com/security/CVE-2023-39192 - netfilter: xtu32: validate user space input CVE-url:...