CWE-590
Free of Memory not on the Heap
The product calls free() on a pointer to memory that was not allocated using associated heap allocation functions such as malloc(), calloc(), or realloc().
CVE-2020-6016 (GCVE-0-2020-6016)
Vulnerability from cvelistv5
Published
2020-11-18 14:11
Modified
2024-08-04 08:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-590 - Free of Memory not on the Heap
Summary
Valve's Game Networking Sockets prior to version v1.2.0 improperly handles unreliable segments with negative offsets in function SNP_ReceiveUnreliableSegment(), leading to a Heap-Based Buffer Underflow and a free() of memory not from the heap, resulting in a memory corruption and probably even a remote code execution.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Game Networking Sockets |
Version: All versions prior to v1.2.0 |
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CVE-2021-39218 (GCVE-0-2021-39218)
Vulnerability from cvelistv5
Published
2021-09-17 20:10
Modified
2024-08-04 01:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.26.0 and before version 0.30.0 is affected by a memory unsoundness vulnerability. There was an invalid free and out-of-bounds read and write bug when running Wasm that uses `externref`s in Wasmtime. To trigger this bug, Wasmtime needs to be running Wasm that uses `externref`s, the host creates non-null `externrefs`, Wasmtime performs a garbage collection (GC), and there has to be a Wasm frame on the stack that is at a GC safepoint where there are no live references at this safepoint, and there is a safepoint with live references earlier in this frame's function. Under this scenario, Wasmtime would incorrectly use the GC stack map for the safepoint from earlier in the function instead of the empty safepoint. This would result in Wasmtime treating arbitrary stack slots as `externref`s that needed to be rooted for GC. At the *next* GC, it would be determined that nothing was referencing these bogus `externref`s (because nothing could ever reference them, because they are not really `externref`s) and then Wasmtime would deallocate them and run `<ExternRef as Drop>::drop` on them. This results in a free of memory that is not necessarily on the heap (and shouldn't be freed at this moment even if it was), as well as potential out-of-bounds reads and writes. Even though support for `externref`s (via the reference types proposal) is enabled by default, unless you are creating non-null `externref`s in your host code or explicitly triggering GCs, you cannot be affected by this bug. We have reason to believe that the effective impact of this bug is relatively small because usage of `externref` is currently quite rare. This bug has been patched and users should upgrade to Wasmtime version 0.30.0. If you cannot upgrade Wasmtime at this time, you can avoid this bug by disabling the reference types proposal by passing `false` to `wasmtime::Config::wasm_reference_types`.
References
| ► | URL | Tags | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bytecodealliance | wasmtime |
Version: >= 0.26.0, <= 0.29.0 |
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CVE-2021-3939 (GCVE-0-2021-3939)
Vulnerability from cvelistv5
Published
2021-11-17 03:15
Modified
2024-09-16 18:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-590 - Free of Memory not on the Heap
Summary
Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Ubuntu | accountsservice |
Version: 0.6.55-0ubuntu12~20.04 < 0.6.55-0ubuntu12~20.04.5 Version: 0.6.55-0ubuntu13 < 0.6.55-0ubuntu13.3 Version: 0.6.55-0ubuntu14 < 0.6.55-0ubuntu14.1 |
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CVE-2021-42377 (GCVE-0-2021-42377)
Vulnerability from cvelistv5
Published
2021-11-15 00:00
Modified
2024-08-04 03:30
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.
References
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CVE-2022-31625 (GCVE-0-2022-31625)
Vulnerability from cvelistv5
Published
2022-06-16 05:45
Modified
2024-09-16 18:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when using Postgres database extension, supplying invalid parameters to the parametrized query may lead to PHP attempting to free memory using uninitialized data as pointers. This could lead to RCE vulnerability or denial of service.
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
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CVE-2022-31627 (GCVE-0-2022-31627)
Vulnerability from cvelistv5
Published
2022-07-28 05:50
Modified
2024-09-16 21:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-590 - Free of Memory not on the Heap
Summary
In PHP versions 8.1.x below 8.1.8, when fileinfo functions, such as finfo_buffer, due to incorrect patch applied to the third party code from libmagic, incorrect function may be used to free allocated memory, which may lead to heap corruption.
References
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CVE-2023-22291 (GCVE-0-2023-22291)
Vulnerability from cvelistv5
Published
2023-04-05 15:18
Modified
2024-08-02 10:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-590 - Free of Memory not on the Heap
Summary
An invalid free vulnerability exists in the Frame stream parser functionality of Ichitaro 2022 1.0.1.57600. A specially crafted document can lead to an attempt to free a stack pointer, which causes memory corruption. An attacker can provide a malicious file to trigger this vulnerability.
References
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CVE-2023-25565 (GCVE-0-2023-25565)
Vulnerability from cvelistv5
Published
2023-02-14 17:35
Modified
2025-03-10 21:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-590 - Free of Memory not on the Heap
Summary
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.
References
| ► | URL | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| gssapi | gss-ntlmssp |
Version: < 1.2.0 |
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CVE-2023-42459 (GCVE-0-2023-42459)
Vulnerability from cvelistv5
Published
2023-10-16 20:56
Modified
2025-02-13 17:09
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). In affected versions specific DATA submessages can be sent to a discovery locator which may trigger a free error. This can remotely crash any Fast-DDS process. The call to free() could potentially leave the pointer in the attackers control which could lead to a double free. This issue has been addressed in versions 2.12.0, 2.11.3, 2.10.3, and 2.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
References
| ► | URL | Tags | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2025-32911 (GCVE-0-2025-32911)
Vulnerability from cvelistv5
Published
2025-04-15 15:39
Modified
2025-07-29 00:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-590 - Free of Memory not on the Heap
Summary
A use-after-free type vulnerability was found in libsoup, in the soup_message_headers_get_content_disposition() function. This flaw allows a malicious HTTP client to cause memory corruption in the libsoup server.
References
| ► | URL | Tags | |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ► |
Version: 0 ≤ |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mitigation
Phase: Implementation
Description:
- Only free pointers that you have called malloc on previously. This is the recommended solution. Keep track of which pointers point at the beginning of valid chunks and free them only once.
Mitigation
Phase: Implementation
Description:
- Before freeing a pointer, the programmer should make sure that the pointer was previously allocated on the heap and that the memory belongs to the programmer. Freeing an unallocated pointer will cause undefined behavior in the program.
Mitigation ID: MIT-4.6
Phase: Architecture and Design
Strategy: Libraries or Frameworks
Description:
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, glibc in Linux provides protection against free of invalid pointers.
Mitigation
Phase: Architecture and Design
Description:
- Use a language that provides abstractions for memory allocation and deallocation.
Mitigation
Phase: Testing
Description:
- Use a tool that dynamically detects memory management problems, such as valgrind.
No CAPEC attack patterns related to this CWE.