Weakness (CWE)
CWE-190: Integer Overflow or Wraparound
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.
How to prevent it (7 mitigations)
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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.
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Requirements
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.
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Architecture and Design
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]
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Implementation
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.
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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.
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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.
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Implementation
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.
Source: MITRE CWE-190
598 results · Clear filters · Feed
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Medium 6.1
Gimp: gimp integer overflow
A flaw was found in GIMP. An integer overflow vulnerability exists in the GIMP "Despeckle" plug-in. The issue occurs due to unchecked multiplication of image dimensions, such as width, height, and bytes-per-pixel (img_bpp), which can result in allocating insu…
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Medium 6.5
Nbd: nbdkit: integer overflow triggers an assertion resulting in denial of service
A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leadi…
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Medium 4.3
WAGO: Switches affected by year 2k38 problem
A low privileged attacker can set the date of the devices to the 19th of January 2038 an therefore exceed the 32-Bit time limit. This causes the date of the switch to be set back to January 1st, 1970.
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Medium 4.8
A integer overflow or wraparound in Fortinet FortiOS versions 7.2.0 through 7.2.7, versions 7.0.0 through 7.0.14 may al…
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Medium 4.3
jq has signed integer overflow in jv.c:jvp_array_write
jq is a command-line JSON processor. In versions up to and including 1.7.1, an integer overflow arises when assigning value using an index of 2147483647, the signed integer limit. This causes a denial of service. Commit de21386681c0df0104a99d9d09db23a9b2a78b1…
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Medium 5.3
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library. The included FastCGI library is affected by CVE-2025-23016, causing an integer overflow (and resultant heap-based buffer overflow) via crafted nam…
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Medium 4.5
In libavif before 1.3.0, makeRoom in stream.c has an integer overflow and resultant buffer overflow in stream->offset+s…
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Medium 4.5
In libavif before 1.3.0, avifImageRGBToYUV in reformat.c has integer overflows in multiplications involving rgbRowBytes…
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Medium 6.5
ping in iputils before 20250602 allows a denial of service (application error or incorrect data collection) via a craft…
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Medium 5.5
ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()
In the Linux kernel, the following vulnerability has been resolved: ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() Change num_ghes from int to unsigned int, preventing an overflow and causing subsequent vmalloc() to fail. The overflow happens in…
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Medium 6.5
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPad…
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Medium 6.5
WAGO: Year 2038 problem
A low privileged user can set the date of the devices to the 19th of January 2038 an therefore exceed the 32-Bit time limit. This causes some functions to work unexpected or stop working at all. Both during runtime and after a restart.
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Medium 6.5
Dell PowerScale OneFS, versions 9.4.0.0 through 9.10.0.1, contains an integer overflow or wraparound vulnerability. An …
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Medium 5.6
In SQLite 3.49.0 before 3.49.1, certain argument values to sqlite3_db_config (in the C-language API) can cause a denial…
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Medium 6.3
Nothings stb stb_dupreplace integer overflow
A vulnerability was found in Nothings stb up to f056911. It has been rated as critical. Affected by this issue is the function stb_dupreplace. The manipulation leads to integer overflow. The attack may be launched remotely. Continious delivery with rolling re…
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Medium 6.5
Liteos_A has an integer overflow vulnerability
in OpenHarmony v5.0.2 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through integer overflow.
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Medium 4.0
A floating-point exception in the PSStack::roll function of Poppler before 25.04.0 can cause an application to crash wh…
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Medium 5.5
xsk: fix an integer overflow in xp_create_and_assign_umem()
In the Linux kernel, the following vulnerability has been resolved: xsk: fix an integer overflow in xp_create_and_assign_umem() Since the i and pool->chunk_size variables are of type 'u32', their product can wrap around and then be cast to 'u64'. This can lea…
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Medium 5.5
cifs: Fix integer overflow while processing acregmax mount option
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acregmax mount option User-provided mount parameter acregmax of type u32 is intended to have an upper limit, but before it is validated, the value …
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Medium 5.5
cifs: Fix integer overflow while processing closetimeo mount option
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing closetimeo mount option User-provided mount parameter closetimeo of type u32 is intended to have an upper limit, but before it is validated, the va…
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Medium 5.5
cifs: Fix integer overflow while processing acdirmax mount option
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acdirmax mount option User-provided mount parameter acdirmax of type u32 is intended to have an upper limit, but before it is validated, the value …
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Medium 5.5
cpufreq: CPPC: Add u64 casts to avoid overflowing
In the Linux kernel, the following vulnerability has been resolved: cpufreq: CPPC: Add u64 casts to avoid overflowing The fields of the _CPC object are unsigned 32-bits values. To avoid overflows while using _CPC's values, add 'u64' casts.
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Medium 5.5
i2c: designware: use casting of u64 in clock multiplication to avoid overflow
In the Linux kernel, the following vulnerability has been resolved: i2c: designware: use casting of u64 in clock multiplication to avoid overflow In functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow by depending on the values of the given pa…
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Medium 5.5
perf/x86/amd: fix potential integer overflow on shift of a int
In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd: fix potential integer overflow on shift of a int The left shift of int 32 bit integer constant 1 is evaluated using 32 bit arithmetic and then passed as a 64 bit function argume…
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Medium 4.6CVE-2024-40635 Public exploit
containerd has an integer overflow in User ID handling
containerd is an open-source container runtime. A bug was found in containerd prior to versions 1.6.38, 1.7.27, and 2.0.4 where containers launched with a User set as a `UID:GID` larger than the maximum 32-bit signed integer can cause an overflow condition wh…
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Medium 4.3
libzvbi _vbi_strndup_iconv integer overflow
A vulnerability was found in libzvbi up to 0.2.43. It has been rated as problematic. Affected by this issue is the function _vbi_strndup_iconv. The manipulation leads to integer overflow. The attack may be launched remotely. The exploit has been disclosed to …
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Medium 5.3
libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflow
A vulnerability was found in libzvbi up to 0.2.43. It has been declared as problematic. Affected by this vulnerability is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to integer overflow. The at…
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Medium 4.1
Grub2: fs/bfs: integer overflow in the bfs parser.
A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to crash.
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Medium 6.0
Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser
An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow du…
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Medium 5.5
Integer Overflow or Wraparound in BT Controller
Transient DOS can occur while processing UCI command.
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Medium 6.5
In da, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosu…
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Medium 5.5
drm: zynqmp_dp: Fix integer overflow in zynqmp_dp_rate_get()
In the Linux kernel, the following vulnerability has been resolved: drm: zynqmp_dp: Fix integer overflow in zynqmp_dp_rate_get() This patch fixes a potential integer overflow in the zynqmp_dp_rate_get() The issue comes up when the expression drm_dp_bw_code_to…
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Medium 5.5
rtc: tps6594: Fix integer overflow on 32bit systems
In the Linux kernel, the following vulnerability has been resolved: rtc: tps6594: Fix integer overflow on 32bit systems The problem is this multiply in tps6594_rtc_set_offset() tmp = offset * TICKS_PER_HOUR; The "tmp" variable is an s64 but "offset" is a long…
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Medium 5.5
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the tran…
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Medium 5.5
gpio: gpio-xilinx: Fix integer overflow
In the Linux kernel, the following vulnerability has been resolved: gpio: gpio-xilinx: Fix integer overflow Current implementation is not able to configure more than 32 pins due to incorrect data type. So type casting with unsigned long to avoid it.
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Medium 5.5
RDMA/hfi1: Fix potential integer multiplication overflow errors
In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix potential integer multiplication overflow errors When multiplying of different types, an overflow is possible even when storing the result in a larger type. This is because the…
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Medium 5.5
watchdog: rzg2l_wdt: Fix 32bit overflow issue
In the Linux kernel, the following vulnerability has been resolved: watchdog: rzg2l_wdt: Fix 32bit overflow issue The value of timer_cycle_us can be 0 due to 32bit overflow. For eg:- If we assign the counter value "0xfff" for computing maxval. This patch fixe…
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Medium 5.9
Heap Buffer overflow in Abseil
There exists a heap buffer overflow vulnerable in Abseil-cpp. The sized constructors, reserve(), and rehash() methods of absl::{flat,node}hash{set,map} did not impose an upper bound on their size argument. As a result, it was possible for a caller to pass a v…
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Medium 4.9
NVIDIA Triton Inference Server contains a vulnerability in the model loading API, where a user could cause an integer o…
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Medium 5.5
Liteos_a has an integer overflow read vulnerability
in OpenHarmony v4.1.2 and prior versions allow a local attacker cause DOS through integer overflow.