Vulnerabilities (CVE)

Filtered by CWE-476
Total 5657 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-36789 1 Linux 1 Linux Kernel 2026-06-17 N/A 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context If a driver calls can_get_echo_skb() during a hardware IRQ (which is often, but not always, the case), the 'WARN_ON(in_irq)' in net/core/skbuff.c#skb_release_head_state() might be triggered, under network congestion circumstances, together with the potential risk of a NULL pointer dereference. The root cause of this issue is the call to kfree_skb() instead of dev_kfree_skb_irq() in net/core/dev.c#enqueue_to_backlog(). This patch prevents the skb to be freed within the call to netif_rx() by incrementing its reference count with skb_get(). The skb is finally freed by one of the in-irq-context safe functions: dev_consume_skb_any() or dev_kfree_skb_any(). The "any" version is used because some drivers might call can_get_echo_skb() in a normal context. The reason for this issue to occur is that initially, in the core network stack, loopback skb were not supposed to be received in hardware IRQ context. The CAN stack is an exeption. This bug was previously reported back in 2017 in [1] but the proposed patch never got accepted. While [1] directly modifies net/core/dev.c, we try to propose here a smoother modification local to CAN network stack (the assumption behind is that only CAN devices are affected by this issue). [1] http://lore.kernel.org/r/57a3ffb6-3309-3ad5-5a34-e93c3fe3614d@cetitec.com
CVE-2020-36646 1 Mediaarea 1 Zenlib 2026-06-17 2.3 LOW 3.5 LOW
A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.
CVE-2020-36558 1 Linux 1 Linux Kernel 2026-06-17 N/A 5.1 MEDIUM
A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault.
CVE-2020-36149 2 Fedoraproject, Symonics 2 Fedora, Libmysofa 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
Incorrect handling of input data in changeAttribute function in the libmysofa library 0.5 - 1.1 will lead to NULL pointer dereference and segmentation fault error in case of restrictive memory protection or near NULL pointer overwrite in case of no memory restrictions (e.g. in embedded environments).
CVE-2020-36148 2 Fedoraproject, Symonics 2 Fedora, Libmysofa 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
Incorrect handling of input data in verifyAttribute function in the libmysofa library 0.5 - 1.1 will lead to NULL pointer dereference and segmentation fault error in case of restrictive memory protection or near NULL pointer overwrite in case of no memory restrictions (e.g. in embedded environments).
CVE-2020-36138 1 Ffmpeg 1 Ffmpeg 2026-06-17 N/A 7.5 HIGH
An issue was discovered in decode_frame in libavcodec/tiff.c in FFmpeg version 4.3, allows remote attackers to cause a denial of service (DoS).
CVE-2020-36135 1 Aomedia 1 Aomedia 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
AOM v2.0.1 was discovered to contain a NULL pointer dereference via the component rate_hist.c.
CVE-2020-36130 1 Aomedia 1 Aomedia 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
AOM v2.0.1 was discovered to contain a NULL pointer dereference via the component av1/av1_dx_iface.c.
CVE-2020-36024 1 Freedesktop 1 Poppler 2026-06-17 N/A 5.5 MEDIUM
An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::convertToType1 function.
CVE-2020-35982 1 Gpac 1 Gpac 2026-06-17 6.8 MEDIUM 7.8 HIGH
An issue was discovered in GPAC version 0.8.0 and 1.0.1. There is an invalid pointer dereference in the function gf_hinter_track_finalize() in media_tools/isom_hinter.c.
CVE-2020-35981 1 Gpac 1 Gpac 2026-06-17 6.8 MEDIUM 7.8 HIGH
An issue was discovered in GPAC version 0.8.0 and 1.0.1. There is an invalid pointer dereference in the function SetupWriters() in isomedia/isom_store.c.
CVE-2020-35907 1 Rust-lang 1 Futures-task 2026-06-17 2.1 LOW 5.5 MEDIUM
An issue was discovered in the futures-task crate before 0.3.5 for Rust. futures_task::noop_waker_ref allows a NULL pointer dereference.
CVE-2020-35860 1 Cbox Project 1 Cbox 2026-06-17 7.5 HIGH 9.8 CRITICAL
An issue was discovered in the cbox crate through 2020-03-19 for Rust. The CBox API allows dereferencing raw pointers without a requirement for unsafe code.
CVE-2020-35680 2 Fedoraproject, Opensmtpd 2 Fedora, Opensmtpd 2026-06-17 5.0 MEDIUM 7.5 HIGH
smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer.
CVE-2020-35668 1 Redislabs 1 Redisgraph 2026-06-17 5.0 MEDIUM 7.5 HIGH
RedisGraph 2.x through 2.2.11 has a NULL Pointer Dereference that leads to a server crash because it mishandles an unquoted string, such as an alias that has not yet been introduced.
CVE-2020-35538 1 Libjpeg-turbo 1 Libjpeg-turbo 2026-06-17 N/A 5.5 MEDIUM
A crafted input file could cause a null pointer dereference in jcopy_sample_rows() when processed by libjpeg-turbo.
CVE-2020-35525 1 Sqlite 1 Sqlite 2026-06-17 N/A 7.5 HIGH
In SQlite 3.31.1, a potential null pointer derreference was found in the INTERSEC query processing.
CVE-2020-35507 4 Broadcom, Gnu, Netapp and 1 more 9 Brocade Fabric Operating System, Binutils, Cloud Backup and 6 more 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
There's a flaw in bfd_pef_parse_function_stubs of bfd/pef.c in binutils in versions prior to 2.34 which could allow an attacker who is able to submit a crafted file to be processed by objdump to cause a NULL pointer dereference. The greatest threat of this flaw is to application availability.
CVE-2020-35505 2 Debian, Qemu 2 Debian Linux, Qemu 2026-06-17 2.1 LOW 4.4 MEDIUM
A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVE-2020-35504 3 Debian, Fedoraproject, Qemu 3 Debian Linux, Fedora, Qemu 2026-06-17 2.1 LOW 6.0 MEDIUM
A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.