Search Results (2777 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2020-25683 4 Debian, Fedoraproject, Redhat and 1 more 5 Debian Linux, Fedora, Enterprise Linux and 2 more 2025-11-04 5.9 Medium
A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. A remote attacker, who can create valid DNS replies, could use this flaw to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in get_rdata() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVE-2020-25682 4 Debian, Fedoraproject, Redhat and 1 more 5 Debian Linux, Fedora, Enterprise Linux and 2 more 2025-11-04 8.1 High
A flaw was found in dnsmasq before 2.83. A buffer overflow vulnerability was discovered in the way dnsmasq extract names from DNS packets before validating them with DNSSEC data. An attacker on the network, who can create valid DNS replies, could use this flaw to cause an overflow with arbitrary data in a heap-allocated memory, possibly executing code on the machine. The flaw is in the rfc1035.c:extract_name() function, which writes data to the memory pointed by name assuming MAXDNAME*2 bytes are available in the buffer. However, in some code execution paths, it is possible extract_name() gets passed an offset from the base buffer, thus reducing, in practice, the number of available bytes that can be written in the buffer. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2020-25681 4 Debian, Fedoraproject, Redhat and 1 more 5 Debian Linux, Fedora, Enterprise Linux and 2 more 2025-11-04 8.1 High
A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2024-25390 1 Rt-thread 1 Rt-thread 2025-11-04 8.4 High
A heap buffer overflow occurs in finsh/msh_file.c and finsh/msh.c in RT-Thread through 5.0.2.
CVE-2024-24335 1 Rt-thread 1 Rt-thread 2025-11-04 8.4 High
A heap buffer overflow occurs in the dfs_v2 romfs filesystem RT-Thread through 5.0.2.
CVE-2024-21802 1 Ggerganov 1 Llama.cpp 2025-11-04 8.8 High
A heap-based buffer overflow vulnerability exists in the GGUF library info->ne functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
CVE-2024-21795 3 Fedoraproject, Libbiosig Project, The Biosig Project 3 Fedora, Libbiosig, Libbiosig 2025-11-04 9.8 Critical
A heap-based buffer overflow vulnerability exists in the .egi parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .egi file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
CVE-2024-0684 1 Gnu 1 Coreutils 2025-11-04 5.5 Medium
A flaw was found in the GNU coreutils "split" program. A heap overflow with user-controlled data of multiple hundred bytes in length could occur in the line_bytes_split() function, potentially leading to an application crash and denial of service.
CVE-2023-45318 2 Silabs, Weston-embedded 3 Gecko Platform, Gecko Software Development Kit, Uc-http 2025-11-04 10 Critical
A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP git commit 80d4004. A specially crafted network packet can lead to arbitrary code execution. An attacker can send a malicious packet to trigger this vulnerability.
CVE-2023-37329 2 Gstreamer, Gstreamer Project 2 Gstreamer, Gstreamer 2025-11-04 8.8 High
GStreamer SRT File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of SRT subtitle files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20968.
CVE-2023-37328 3 Gstreamer, Gstreamer Project, Redhat 3 Gstreamer, Gstreamer, Enterprise Linux 2025-11-04 8.8 High
GStreamer PGS File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of PGS subtitle files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-20994.
CVE-2024-31582 2 Fedoraproject, Ffmpeg 2 Fedora, Ffmpeg 2025-11-04 7.8 High
FFmpeg version n6.1 was discovered to contain a heap buffer overflow vulnerability in the draw_block_rectangle function of libavfilter/vf_codecview.c. This vulnerability allows attackers to cause undefined behavior or a Denial of Service (DoS) via crafted input.
CVE-2024-21778 3 Level1, Levelone, Realtek 5 Wbr-6013, Wbr-6013 Firmware, Wbr-6013 and 2 more 2025-11-04 7.2 High
A heap-based buffer overflow vulnerability exists in the configuration file mib_init_value_array functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted .dat file can lead to arbitrary code execution. An attacker can upload a malicious file to trigger this vulnerability.
CVE-2023-51795 1 Ffmpeg 1 Ffmpeg 2025-11-04 8 High
Buffer Overflow vulnerability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavfilter/avf_showspectrum.c:1789:52 component in showspectrumpic_request_frame
CVE-2023-49528 2 Fedoraproject, Ffmpeg 2 Fedora, Ffmpeg 2025-11-04 8 High
Buffer Overflow vulnerability in FFmpeg version n6.1-3-g466799d4f5, allows a local attacker to execute arbitrary code and cause a denial of service (DoS) via the af_dialoguenhance.c:261:5 in the de_stereo component.
CVE-2023-49501 2 Fedoraproject, Ffmpeg 2 Fedora, Ffmpeg 2025-11-04 8 High
Buffer Overflow vulnerability in Ffmpeg v.n6.1-3-g466799d4f5 allows a local attacker to execute arbitrary code via the config_eq_output function in the libavfilter/asrc_afirsrc.c:495:30 component.
CVE-2023-5841 2 Openexr, Redhat 4 Openexr, Enterprise Linux, Rhel E4s and 1 more 2025-11-04 9.1 Critical
Due to a failure in validating the number of scanline samples of a OpenEXR file containing deep scanline data, Academy Software Foundation OpenEX image parsing library version 3.2.1 and prior is susceptible to a heap-based buffer overflow vulnerability. This issue was resolved as of versions v3.2.2 and v3.1.12 of the affected library.
CVE-2023-50230 2 Bluez, Redhat 2 Bluez, Enterprise Linux 2025-11-04 8.0 High
BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of the Phone Book Access profile. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20938.
CVE-2023-50229 2 Bluez, Redhat 2 Bluez, Enterprise Linux 2025-11-04 8.0 High
BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of the Phone Book Access profile. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20936.
CVE-2023-4504 3 Debian, Fedoraproject, Openprinting 4 Debian Linux, Fedora, Cups and 1 more 2025-11-04 7 High
Due to failure in validating the length provided by an attacker-crafted PPD PostScript document, CUPS and libppd are susceptible to a heap-based buffer overflow and possibly code execution. This issue has been fixed in CUPS version 2.4.7, released in September of 2023.