CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CVE-2026-3147 (GCVE-0-2026-3147)
Vulnerability from cvelistv5 – Published: 2026-02-25 03:32 – Updated: 2026-02-25 15:32 X_Open Source
VLAI
Title
libvips csvload.c vips_foreign_load_csv_build heap-based overflow
Summary
A vulnerability was found in libvips up to 8.18.0. This affects the function vips_foreign_load_csv_build of the file libvips/foreign/csvload.c. The manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been made public and could be used. The patch is identified as b3ab458a25e0e261cbd1788474bbc763f7435780. It is advisable to implement a patch to correct this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347653 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.347653 | signaturepermissions-required |
| https://vuldb.com/?submit.758692 | third-party-advisory |
| https://github.com/libvips/libvips/issues/4874 | issue-tracking |
| https://github.com/libvips/libvips/pull/4894 | issue-trackingpatch |
| https://github.com/libvips/libvips/issues/4874#is… | exploitissue-tracking |
| https://github.com/libvips/libvips/commit/b3ab458… | patch |
| https://github.com/libvips/libvips/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | libvips |
Affected:
8.0
Affected: 8.1 Affected: 8.2 Affected: 8.3 Affected: 8.4 Affected: 8.5 Affected: 8.6 Affected: 8.7 Affected: 8.8 Affected: 8.9 Affected: 8.10 Affected: 8.11 Affected: 8.12 Affected: 8.13 Affected: 8.14 Affected: 8.15 Affected: 8.16 Affected: 8.17 Affected: 8.18.0 cpe:2.3:a:libvips:libvips:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-31796 (GCVE-0-2026-31796)
Vulnerability from cvelistv5 – Published: 2026-03-10 18:05 – Updated: 2026-03-10 19:32
VLAI
Title
iccDEV has a heap-based buffer overflow in icCurvesFromXml()
Summary
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to 2.3.1.5, there is a heap-based buffer overflow in icCurvesFromXml() causing heap memory corruption or crash. This vulnerability is fixed in 2.3.1.5.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/InternationalColorConsortium/i… | x_refsource_CONFIRM |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| InternationalColorConsortium | iccDEV |
Affected:
< 2.3.1.5
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CVE-2026-31806 (GCVE-0-2026-31806)
Vulnerability from cvelistv5 – Published: 2026-03-13 17:40 – Updated: 2026-03-15 01:51
VLAI
Title
FreeRDP has a Heap Buffer Overflow in nsc_process_message() via Unchecked SURFACE_BITS_COMMAND Bitmap Dimensions
Summary
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, the gdi_surface_bits() function processes SURFACE_BITS_COMMAND messages sent by the RDP server. When the command is handled using NSCodec, the bmp.width and bmp.height values provided by the server are not properly validated against the actual desktop dimensions. A malicious RDP server can supply crafted bmp.width and bmp.height values that exceed the expected surface size. Because these values are used during bitmap decoding and memory operations without proper bounds checking, this can lead to a heap buffer overflow. Since the attacker can also control the associated pixel data transmitted by the server, the overflow may be exploitable to overwrite adjacent heap memory. This vulnerability is fixed in 3.24.0.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | x_refsource_CONFIRM |
| https://github.com/FreeRDP/FreeRDP/commit/83d9aed… | x_refsource_MISC |
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CVE-2026-31853 (GCVE-0-2026-31853)
Vulnerability from cvelistv5 – Published: 2026-03-11 17:09 – Updated: 2026-03-11 17:42
VLAI
Title
ImageMagick has a heap buffer over-write on 32-bit systems in SFW decoder
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-16 and 6.9.13-41, an overflow on 32-bit systems can cause a crash in the SFW decoder when processing extremely large images. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
>= 7.0.0, < 7.1.2-16
Affected: < 6.9.13-41 |
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CVE-2026-31883 (GCVE-0-2026-31883)
Vulnerability from cvelistv5 – Published: 2026-03-13 17:35 – Updated: 2026-03-16 17:02
VLAI
Title
FreeRDP has a `size_t` underflow in ADPCM decoder leads to heap-buffer-overflow write
Summary
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a size_t underflow in the IMA-ADPCM and MS-ADPCM audio decoders leads to heap-buffer-overflow write via the RDPSND audio channel. In libfreerdp/codec/dsp.c, the IMA-ADPCM and MS-ADPCM decoders subtract block header sizes from a size_t variable without checking for underflow. When nBlockAlign (received from the server) is set such that size % block_size == 0 triggers the header parsing at a point where size is smaller than the header (4 or 8 bytes), the subtraction wraps size to ~SIZE_MAX. The while (size > 0) loop then continues for an astronomical number of iterations. This vulnerability is fixed in 3.24.0.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | x_refsource_CONFIRM |
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CVE-2026-31962 (GCVE-0-2026-31962)
Vulnerability from cvelistv5 – Published: 2026-03-18 18:08 – Updated: 2026-03-18 18:37
VLAI
Title
HTSlib CRAM reader has heap buffer overflow due to improper validation of input
Summary
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. While most alignment records store DNA sequence and quality values, the format also allows them to omit this data in certain cases to save space. Due to some quirks of the CRAM format, it is necessary to handle these records carefully as they will actually store data that needs to be consumed and then discarded. Unfortunately the `cram_decode_seq()` did not handle this correctly in some cases. Where this happened it could result in reading a single byte from beyond the end of a heap allocation, followed by writing a single attacker-controlled byte to the same location. Exploiting this bug causes a heap buffer overflow. If a user opens a file crafted to exploit this issue, it could lead to the program crashing, or overwriting of data and heap structures in ways not expected by the program. It may be possible to use this to obtain arbitrary code execution. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/samtools/htslib/security/advis… | x_refsource_CONFIRM |
| https://github.com/samtools/htslib/commit/d799b54… | x_refsource_MISC |
Impacted products
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CVE-2026-31963 (GCVE-0-2026-31963)
Vulnerability from cvelistv5 – Published: 2026-03-18 18:22 – Updated: 2026-03-18 18:52
VLAI
Title
HTSlib CRAM reader has heap buffer overflow due to improper validation of input
Summary
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. As one method of removing redundant data, CRAM uses reference-based compression so that instead of storing the full sequence for each alignment record it stores a location in an external reference sequence along with a list of differences to the reference at that location as a sequence of "features". When decoding these features, an out-by-one error in a test for CRAM features that appear beyond the extent of the CRAM record sequence could result in an invalid write of one attacker-controlled byte beyond the end of a heap buffer. Exploiting this bug causes a heap buffer overflow. If a user opens a file crafted to exploit this issue, it could lead to the program crashing, or overwriting of data and heap structures in ways not expected by the program. It may be possible to use this to obtain arbitrary code execution. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/samtools/htslib/security/advis… | x_refsource_CONFIRM |
| https://github.com/samtools/htslib/commit/8bcc990… | x_refsource_MISC |
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CVE-2026-31968 (GCVE-0-2026-31968)
Vulnerability from cvelistv5 – Published: 2026-03-18 19:38 – Updated: 2026-03-18 19:57
VLAI
Title
HTSlib CRAM decoder vulnerable to buffer overflow
Summary
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. For the `VARINT` and `CONST` encodings, incomplete validation of the context in which the encodings were used could result in up to eight bytes being written beyond the end of a heap allocation, or up to eight bytes being written to the location of a one byte variable on the stack, possibly causing the values to adjacent variables to change unexpectedly. Depending on the data stream this could result either in a heap buffer overflow or a stack overflow. If a user opens a file crafted to exploit this issue it could lead to the program crashing, overwriting of data structures on the heap or stack in ways not expected by the program, or changing the control flow of the program. It may be possible to use this to obtain arbitrary code execution. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/samtools/htslib/security/advis… | x_refsource_CONFIRM |
| https://github.com/samtools/htslib/commit/0ec4367… | x_refsource_MISC |
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CVE-2026-31969 (GCVE-0-2026-31969)
Vulnerability from cvelistv5 – Published: 2026-03-18 19:47 – Updated: 2026-03-18 20:12
VLAI
Title
HTSlib CRAM decoder has a heap buffer overflow
Summary
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. When reading data encoded using the `BYTE_ARRAY_STOP` method, an out-by-one error in the `cram_byte_array_stop_decode_char()` function check for a full output buffer could result in a single attacker-controlled byte being written beyond the end of a heap allocation. Exploiting this bug causes a heap buffer overflow. If a user opens a file crafted to exploit this issue, it could lead to the program crashing, or overwriting of data and heap structures in ways not expected by the program. It may be possible to use this to obtain arbitrary code execution. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/samtools/htslib/security/advis… | x_refsource_CONFIRM |
| https://github.com/samtools/htslib/commit/88cdf69… | x_refsource_MISC |
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CVE-2026-31970 (GCVE-0-2026-31970)
Vulnerability from cvelistv5 – Published: 2026-03-18 19:53 – Updated: 2026-03-18 23:08
VLAI
Title
HTSlib BGZF index file reader has a heap buffer overflow
Summary
HTSlib is a library for reading and writing bioinformatics file formats. GZI files are used to index block-compressed GZIP [BGZF] files. In the GZI loading function, `bgzf_index_load_hfile()`, it was possible to trigger an integer overflow, leading to an under- or zero-sized buffer being allocated to store the index. Sixteen zero bytes would then be written to this buffer, and, depending on the result of the overflow the rest of the file may also be loaded into the buffer as well. If the function did attempt to load the data, it would eventually fail due to not reading the expected number of records, and then try to free the overflowed heap buffer. Exploiting this bug causes a heap buffer overflow. If a user opens a file crafted to exploit this issue, it could lead to the program crashing, or overwriting of data and heap structures in ways not expected by the program. It may be possible to use this to obtain arbitrary code execution. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. The easiest work-around is to discard any `.gzi` index files from untrusted sources, and use the `bgzip -r` option to recreate them.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/samtools/htslib/security/advis… | x_refsource_CONFIRM |
| https://github.com/samtools/htslib/commit/6dd0d7d… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2026/03/18/9 |
Impacted products
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Mitigation
Phases:
Description:
- Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation
Phase: Architecture and Design
Description:
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation ID: MIT-10
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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.
Mitigation ID: MIT-11
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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].
Mitigation
Phase: Implementation
Description:
- Implement and perform bounds checking on input.
Mitigation
Phase: Implementation
Strategy: Libraries or Frameworks
Description:
- Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Phase: Operation
Description:
- Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.