Common Weakness Enumeration
CWE-843
AllowedAccess of Resource Using Incompatible Type ('Type Confusion')
Abstraction: Base · Status: Incomplete
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
1041 vulnerabilities reference this CWE, most recent first.
CVE-2021-39219 (GCVE-0-2021-39219)
Vulnerability from cvelistv5 – Published: 2021-09-17 20:10 – Updated: 2024-08-04 01:58
VLAI
EPSS
VEX
Title
Wrong type for `Linker`-define functions when used across two `Engine`s
Summary
Wasmtime is an open source runtime for WebAssembly & WASI. Wasmtime before version 0.30.0 is affected by a type confusion vulnerability. As a Rust library the `wasmtime` crate clearly marks which functions are safe and which are `unsafe`, guaranteeing that if consumers never use `unsafe` then it should not be possible to have memory unsafety issues in their embeddings of Wasmtime. An issue was discovered in the safe API of `Linker::func_*` APIs. These APIs were previously not sound when one `Engine` was used to create the `Linker` and then a different `Engine` was used to create a `Store` and then the `Linker` was used to instantiate a module into that `Store`. Cross-`Engine` usage of functions is not supported in Wasmtime and this can result in type confusion of function pointers, resulting in being able to safely call a function with the wrong type. Triggering this bug requires using at least two `Engine` values in an embedding and then additionally using two different values with a `Linker` (one at the creation time of the `Linker` and another when instantiating a module with the `Linker`). It's expected that usage of more-than-one `Engine` in an embedding is relatively rare since an `Engine` is intended to be a globally shared resource, so the expectation is that the impact of this issue is relatively small. The fix implemented is to change this behavior to `panic!()` in Rust instead of silently allowing it. Using different `Engine` instances with a `Linker` is a programmer bug that `wasmtime` catches at runtime. This bug has been patched and users should upgrade to Wasmtime version 0.30.0. If you cannot upgrade Wasmtime and are using more than one `Engine` in your embedding it's recommended to instead use only one `Engine` for the entire program if possible. An `Engine` is designed to be a globally shared resource that is suitable to have only one for the lifetime of an entire process. If using multiple `Engine`s is required then code should be audited to ensure that `Linker` is only used with one `Engine`.
Severity
6.3 (Medium)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://crates.io/crates/wasmtime | x_refsource_MISC |
| https://github.com/bytecodealliance/wasmtime/secu… | x_refsource_CONFIRM |
| https://github.com/bytecodealliance/wasmtime/comm… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| bytecodealliance | wasmtime |
Affected:
<= 0.29.0
|
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CVE-2021-35986 (GCVE-0-2021-35986)
Vulnerability from cvelistv5 – Published: 2021-08-20 18:10 – Updated: 2024-09-16 23:25
VLAI
EPSS
VEX
Title
Adobe Acrobat Pro DC getAnnot Type Confusion Information Disclosure Vulnerability
Summary
Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Type Confusion vulnerability. An unauthenticated attacker could leverage this vulnerability to read arbitrary system information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion') (CWE-843)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 2020.004.30005
(custom)
Affected: unspecified , ≤ 2017.011.30197 (custom) Affected: unspecified , ≤ 2021.005.20054 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2021-07-13 00:00
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CVE-2021-34866 (GCVE-0-2021-34866)
Vulnerability from cvelistv5 – Published: 2022-01-25 15:30 – Updated: 2024-08-04 00:26
VLAI
EPSS
VEX
Summary
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.14-rc3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs, which can result in a type confusion condition. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-14689.
Severity
8.8 (High)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022021… | x_refsource_CONFIRM |
Credits
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CVE-2021-32965 (GCVE-0-2021-32965)
Vulnerability from cvelistv5 – Published: 2022-05-24 17:56 – Updated: 2025-04-16 17:53
VLAI
EPSS
VEX
Title
Delta Electronics DIAScreen - Type Confusion, Out-of-bounds Write
Summary
Delta Electronics DIAScreen versions prior to 1.1.0 are vulnerable to type confusion, which may allow an attacker to remotely execute arbitrary code.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsa-2… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Delta Electronics | DIAScreen |
Affected:
All , < v1.1.0
(custom)
|
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CVE-2021-31480 (GCVE-0-2021-31480)
Vulnerability from cvelistv5 – Published: 2021-06-15 19:11 – Updated: 2024-08-03 23:03
VLAI
EPSS
VEX
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12654.
Severity
7.8 (High)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenText | Brava! Desktop |
Affected:
16.6.3.84
|
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CVE-2021-31476 (GCVE-0-2021-31476)
Vulnerability from cvelistv5 – Published: 2021-06-16 22:15 – Updated: 2024-08-03 23:03
VLAI
EPSS
VEX
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 10.1.3.37598. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of XFA templates. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13531.
Severity
7.8 (High)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://www.foxit.com/support/security-bulletins.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit | PhantomPDF |
Affected:
10.1.3.37598
|
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CVE-2021-31461 (GCVE-0-2021-31461)
Vulnerability from cvelistv5 – Published: 2021-05-07 20:16 – Updated: 2024-08-03 23:03
VLAI
EPSS
VEX
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the the handling of app.media objects. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process Was ZDI-CAN-13333.
Severity
7.8 (High)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.foxitsoftware.com/support/security-bu… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
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CVE-2021-31344 (GCVE-0-2021-31344)
Vulnerability from cvelistv5 – Published: 2021-11-09 11:31 – Updated: 2025-03-11 09:47
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), SIMOTICS CONNECT 400 (All versions < V1.0.0.0). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)
Severity
5.3 (Medium)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
10 references
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | Capital Embedded AR Classic 431-422 |
Affected:
0 , < *
(custom)
|
|
| Siemens | Capital Embedded AR Classic R20-11 |
Affected:
0 , < V2303
(custom)
|
|
| Siemens | PLUSCONTROL 1st Gen |
Affected:
All versions
|
|
| Siemens | SIMOTICS CONNECT 400 |
Affected:
All versions < V0.5.0.0
|
|
| Siemens | SIMOTICS CONNECT 400 |
Affected:
All versions < V1.0.0.0
|
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CVE-2021-29519 (GCVE-0-2021-29519)
Vulnerability from cvelistv5 – Published: 2021-05-14 19:35 – Updated: 2024-08-03 22:11
VLAI
EPSS
VEX
Title
CHECK-fail in SparseCross due to type confusion
Summary
TensorFlow is an end-to-end open source platform for machine learning. The API of `tf.raw_ops.SparseCross` allows combinations which would result in a `CHECK`-failure and denial of service. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/3d782b7d47b1bf2ed32bd4a246d6d6cadc4c903d/tensorflow/core/kernels/sparse_cross_op.cc#L114-L116) is tricked to consider a tensor of type `tstring` which in fact contains integral elements. Fixing the type confusion by preventing mixing `DT_STRING` and `DT_INT64` types solves this issue. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
Severity
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tensorflow/tensorflow/security… | x_refsource_CONFIRM |
| https://github.com/tensorflow/tensorflow/commit/b… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tensorflow | tensorflow |
Affected:
< 2.1.4
Affected: >= 2.2.0, < 2.2.3 Affected: >= 2.3.0, < 2.3.3 Affected: >= 2.4.0, < 2.4.2 |
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CVE-2021-28643 (GCVE-0-2021-28643)
Vulnerability from cvelistv5 – Published: 2021-08-20 18:10 – Updated: 2024-09-16 22:03
VLAI
EPSS
VEX
Title
Adobe Acrobat Pro DC embedDocAsDataObject Type Confusion Information Disclosure Vulnerability
Summary
Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by a Type Confusion vulnerability. An unauthenticated attacker could leverage this vulnerability to disclose sensitive memory information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion') (CWE-843)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 2020.004.30005
(custom)
Affected: unspecified , ≤ 2017.011.30197 (custom) Affected: unspecified , ≤ 2021.005.20054 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2021-07-13 00:00
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.