Weakness (CWE)
CWE-122: Heap-based Buffer Overflow
The product writes past the end of a buffer that was allocated on the heap.
How to prevent it (7 mitigations)
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Pre-design: Use a language or compiler that performs automatic bounds checking.
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Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
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Operation, Build and Compilation
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
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Operation, Build and Compilation
Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
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Implementation
Implement and perform bounds checking on input.
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Implementation
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
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Operation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
Source: MITRE CWE-122
3,754 results · Feed
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High 7.0
Heap-based Buffer Overflow Vulnerability in Hitachi Dynamic Link Manager for Linux
Heap-based Buffer Overflow Vulnerability in Hitachi Dynamic Link Manager for Linux. This issue affects Hitachi Dynamic Link Manager for Linux: from 7.5.0-00 before 9.0.5-00.
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Critical 10.0
Memory Corruption vulnerability in SAP Web Dispatcher
SAP Web Dispatcher does not sufficiently validate certain network input processed by an internal component. An unauthenticated attacker could send specially crafted network traffic to trigger a memory corruption condition in the affected functionality. Succes…
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High 7.0
FFmpeg through 9.0.2 Heap Buffer Overflow via liboapv APV Encoder Wrapper
FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in liboapve_encode() in libavcodec/liboapvenc.c that allows attackers to corrupt heap memory by supplying frames larger than the configured encoder dimensions. Attackers can craft videos whose…
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Medium 5.3
ION-DTN 2.1.0-4.2.0 Heap Buffer Under-allocation DoS in amsd
NASA JPL ION-DTN 2.1.0 through 4.2.0 contains a heap buffer under-allocation vulnerability in the Asynchronous Message Service daemon (amsd) that allows a rogue or misconfigured peer to trigger an out-of-bounds write by sending crafted Meta-AMS (MAMS) configu…
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High 7.5
ION-DTN 3.6.2-4.2.0 Heap Buffer Overflow via nm_mgr AMP Rendering
NASA JPL ION-DTN 3.6.2 through 4.2.0 contains a heap-based buffer overflow in the Network Management daemon (nm_mgr) string-formatting logic that allows a malicious or misconfigured agent to trigger an out-of-bounds write by sending deeply nested AMP payloads…
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Critical 9.3
Buffer Overflow in the data receiving process in NEC Corporation WebSAM WinShare Ver 7.5.0 and earlier, Ver 7.6.0 and V…
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Critical 9.8
D-Link DIR-878 HNAP prog.cgi GetCAPTCHAsetting heap-based overflow
A vulnerability was found in D-Link DIR-878 1.20B05. This affects the function GetCAPTCHAsetting of the file bin/prog.cgi of the component HNAP Handler. Performing a manipulation of the argument uid results in heap-based buffer overflow. The attack can be ini…
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Critical 9.8
imgproxy 4.0.0 before 4.0.16 Heap Buffer Overflow via ICO Loader Integer Overflow
imgproxy from 4.0.0 before 4.0.16 contains an integer overflow in the ICO loader that allows remote attackers to trigger a heap buffer overflow via a crafted data_size value. Attackers can submit a crafted ICO image whose data_size wraps the allocation in vip…
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Critical 10.0
Tenda AC19 saveParentControlInfo heap-based overflow
A vulnerability was determined in Tenda AC19 16.03.10.07. Affected by this issue is the function saveParentControlInfo of the file /goform/saveParentControlInfo. This manipulation of the argument deviceId causes heap-based buffer overflow. The attack is possi…
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High 7.5
A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which…
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Critical 9.8
Heap-based Buffer Overflow in Babelfish for PostgreSQL TDS Prelogin Parser
A heap-based buffer overflow in the TDS prelogin parser in the Babelfish for PostgreSQL extension versions 1.0-1.5, 2.1-2.15, 3.1-3.12, 4.0-4.8, 5.1-5.4 and in Amazon Aurora PostgreSQL with Babelfish might allow remote attackers to execute arbitrary OS comman…
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High 8.2
FreeSWITCH: Pre-authentication heap buffer overflow in core XML empty-entity decoding
FreeSWITCH is an open-source software telecommunications platform. Before version 1.11.2, an integer underflow in switch_xml_decode() can cause an undersized heap allocation when an XML document declares an entity with an empty replacement value. Subsequent…
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Critical 9.1
FreeSWITCH: Pre-authentication heap out-of-bounds write in mod_xml_rpc WebSocket frame length handling
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.2, ws_read_frame() decoded a WebSocket frame's 64-bit extended…
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Medium 6.5
accel-ppp before 1.15.0 Heap-based Buffer Overflow via oversized log lines in log_tcp/log_syslog/log_pgsql
accel-ppp before 1.15.0 contains a heap buffer overflow vulnerability in the tcp, syslog and pgsql log targets that allows unauthenticated remote peers to overflow fixed heap buffers by producing log lines exceeding LOG_MAX_SIZE. Attackers within client-ip-ra…
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High 8.3
WebAssembly Micro Runtime: Heap Buffer Overflow in WAMR WASI poll_oneoff Output Buffer
WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to 2.4.5, wasi_poll_oneoff in core/iwasm/libraries/libc-wasi/libc_wasi_wrapper.c validates the output pointer for only one wasi_event_t, while wasmtime_ssp_poll_one…
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High 7.3
Local privilege escalation in SafeNet Authentication Client SACSrv
A local privilege escalation vulnerability in Thales SafeNet Authentication Client (SAC) SACSrv can allow an authenticated, non-administrator local user to trigger a heap-based buffer overflow through the service interface. Successful exploitation may allow a…
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High 8.1
Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mismatch
A heap buffer overflow in gdbserver's QTDPsrc packet handler allows an unauthenticated remote attacker to achieve native code execution in the gdbserver process. The vulnerability results from a mismatch between a packet's declared source length and the actua…
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Medium 5.3
Wazuh: Heap Buffer Overflow in DecodeWinevt() join_data Accumulation via Crafted EventChannel XML
Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. DecodeWinevt in src/analysisd/decoders/winevtchannel.c accumulates unnamed Windows EventChannel Data element contents into the fixed 65,535-…
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Medium 5.9
reSIProcate reTurn client through 1.14.0 Heap Buffer Overflow via TurnTcpSocket
reSIProcate reTurn client through 1.14.0 contains a heap buffer overflow in TurnTcpSocket::handleReadHeader(), which TurnTlsSocket inherits, that allows malicious TURN servers or on-path attackers to overwrite memory via oversized frame lengths. Attackers can…
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Medium 5.4
IBM MQ is affected by a denial of service vulnerability
IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to obtain sensitive information or cause a denial of se…
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High 7.5
FreeRDP before 3.32.2 Heap Buffer Overflow via rpc_client_recv_fragment
FreeRDP before 3.32.2 contains a heap-based buffer overflow in the RD Gateway RPC client, where rpc_client_recv_fragment writes BIND_ACK and ALTER_CONTEXT_RESP fragments into a persistent PDU stream after checking only total capacity rather than remaining cap…
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High 8.8
FreeRDP through 3.32.1 Heap Out-of-Bounds Write via RDPGFX HashTable_GetKeys
FreeRDP through 3.32.1 has a heap out-of-bounds write in the RDPGFX client because the delete_surface callback truncates surface hash keys to 16 bits, leaving the surface table inconsistent so HashTable_GetKeys writes past its allocated key array. A malicious…
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Medium 6.5
FreeRDP before 3.32.2 Heap Overflow via RDPGFX CREATE_SURFACE Integer Wrap
FreeRDP before 3.32.2 does not check the product of surface dimensions in gdi_CreateSurface when handling an RDPGFX CREATE_SURFACE PDU, causing an integer wrap and heap buffer overflow on 32-bit builds and an approximately 4 GiB allocation on 64-bit builds. A…
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High 7.8
libmt32emu before 2.8.4 Heap Buffer Overflow via MidiStreamParserImpl::parseSysex
libmt32emu before 2.8.4 contains a heap buffer overflow vulnerability in MidiStreamParserImpl::parseSysex that allows attackers to write past a heap allocation by supplying oversized unterminated SysEx messages. Attackers can feed more than 32768 SysEx data b…
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Medium 5.8
Apache OpenOffice: Heap Buffer Overflow in DXF LWPOLYLINE import could cause memory corruption
A crafted DXF document causes a heap buffer overflow in Draw in Apache OpenOffice 4.1.16 and earlier. This could cause a crash or otherwise a corruption of memory areas. Users are recommended to upgrade to version 4.1.17, which fixes this issue.
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Critical 9.8
NoMachine nxwebrunner Heap-based Buffer Overflow Remote Code Execution Vulnerability
NoMachine nxwebrunner Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. Th…
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High 7.2
Tanium addressed a heap-based buffer overflow vulnerability in Deploy.
Tanium addressed a heap-based buffer overflow vulnerability in Deploy.
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Medium 5.0
IrfanView TIFF Wang Annotation heap-based overflow
A vulnerability was detected in IrfanView 4.76.0.0 on Win64. Affected by this vulnerability is an unknown functionality of the component TIFF Wang Annotation Handler. Performing a manipulation results in heap-based buffer overflow. The attack is possible to b…
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Critical 9.6
Buffer overflow in Skia in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code out…
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High 8.8
Buffer overflow in Media in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code in…
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High 8.8
Buffer overflow in PDFium in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code i…
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High 8.8
Buffer overflow in Media in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code in…
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Critical 9.6
Buffer overflow in Dawn in Google Chrome on on Android prior to 157.0.8103.38 allowed a remote attacker to potentially …
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Critical 9.6
Buffer overflow in Dawn in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitr…
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Medium 6.5
Solanum before commit 2ce64de Heap Buffer Overflow via JOIN and SJOIN
Solanum before commit 2ce64de contains a heap-based buffer overflow vulnerability that allows a malicious linked server to corrupt memory by sending overlong channel names in JOIN or SJOIN messages. Attackers controlling a peer server can trigger strcpy and s…
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High 7.0
NVIDIA Slurm contains an attacker-controlled heap-based buffer overflow in the slurmstepd socket handling code.
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Medium 6.3
NVIDIA Slurm contains an attacker-controlled heap-based buffer overflow in the slurmstepd process while the slurmstepd …
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High 8.4
In getEntryFileName of ZipFileRO.cpp, there is a possible memory safety issue due to a heap buffer overflow. This could…
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Medium 5.3
In dec_vlc_read of oapv_vlc.c, there is a possible out-of-bounds read due to a heap buffer overflow. This could lead to…
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High 8.4
In set_type4_frame_classifier of sta_iface.cpp, there is a possible memory safety issue due to a heap buffer overflow. …