Common Weakness Enumeration
CWE-190
AllowedInteger Overflow or Wraparound
Abstraction: Base · Status: Stable
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
3869 vulnerabilities reference this CWE, most recent first.
CVE-2021-4206 (GCVE-0-2021-4206)
Vulnerability from cvelistv5 – Published: 2022-04-29 16:19 – Updated: 2025-03-21 18:03
VLAI
EPSS
VEX
Summary
A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
Severity
No CVSS data available.
CWE
- CWE-190 - >CWE-131->CWE-120
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2036998 | x_refsource_MISC |
| https://starlabs.sg/advisories/21-4206/ | x_refsource_MISC |
| https://www.debian.org/security/2022/dsa-5133 | vendor-advisoryx_refsource_DEBIAN |
| https://security.gentoo.org/glsa/202208-27 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://security.netapp.com/advisory/ntap-2025032… |
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CVE-2021-3933 (GCVE-0-2021-3933)
Vulnerability from cvelistv5 – Published: 2022-03-25 00:00 – Updated: 2024-08-03 17:09
VLAI
EPSS
VEX
Summary
An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits. This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with application stability or lead to other attack paths.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2019783 | |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202210-31 | vendor-advisory |
| https://www.debian.org/security/2022/dsa-5299 | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-list |
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CVE-2021-3782 (GCVE-0-2021-3782)
Vulnerability from cvelistv5 – Published: 2022-09-23 15:26 – Updated: 2025-05-22 18:21
VLAI
EPSS
VEX
Summary
An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.
Severity
6.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - (CWE-190|CWE-911)->CWE-416
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://gitlab.freedesktop.org/wayland/wayland/-/… | x_refsource_MISC |
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CVE-2021-3607 (GCVE-0-2021-3607)
Vulnerability from cvelistv5 – Published: 2022-02-24 18:50 – Updated: 2024-08-03 17:01
VLAI
EPSS
VEX
Summary
An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
- CWE-190 - >CWE-770->(CWE-125|CWE-476)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1973349 | x_refsource_MISC |
| https://lists.gnu.org/archive/html/qemu-devel/202… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022031… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202208-27 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
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CVE-2021-3520 (GCVE-0-2021-3520)
Vulnerability from cvelistv5 – Published: 2021-06-02 12:32 – Updated: 2024-08-03 17:01
VLAI
EPSS
VEX
Summary
There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.
Severity
No CVSS data available.
CWE
- CWE-190 - >CWE-787
Assigner
References
5 references
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|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1954559 | x_refsource_MISC |
| https://www.oracle.com//security-alerts/cpujul2021.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021110… | x_refsource_CONFIRM |
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CVE-2021-3477 (GCVE-0-2021-3477)
Vulnerability from cvelistv5 – Published: 2021-03-31 00:00 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.
Severity
No CVSS data available.
CWE
- CWE-190 - >CWE-125
Assigner
References
5 references
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CVE-2021-3476 (GCVE-0-2021-3476)
Vulnerability from cvelistv5 – Published: 2021-03-30 00:00 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
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CVE-2021-3475 (GCVE-0-2021-3475)
Vulnerability from cvelistv5 – Published: 2021-03-30 00:00 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
There is a flaw in OpenEXR in versions before 3.0.0-beta. An attacker who can submit a crafted file to be processed by OpenEXR could cause an integer overflow, potentially leading to problems with application availability.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
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CVE-2021-3474 (GCVE-0-2021-3474)
Vulnerability from cvelistv5 – Published: 2021-03-30 00:00 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
There's a flaw in OpenEXR in versions before 3.0.0-beta. A crafted input file that is processed by OpenEXR could cause a shift overflow in the FastHufDecoder, potentially leading to problems with application availability.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
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CVE-2021-3428 (GCVE-0-2021-3428)
Vulnerability from cvelistv5 – Published: 2022-03-04 17:19 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.
Severity
No CVSS data available.
CWE
- CWE-190 - - Integer Overflow or Wraparound
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1972621 | x_refsource_MISC |
| https://ubuntu.com/security/CVE-2021-3428 | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
Impacted products
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Mitigation
Requirements
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation MIT-4
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
- Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
Mitigation MIT-8
Implementation
Strategy: Input Validation
- Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
- Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
Mitigation MIT-36
Implementation
- Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
- Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation MIT-15
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-26
Implementation
Strategy: Compilation or Build Hardening
Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
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.