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14 vulnerabilities found for stb_image by nothings
CVE-2026-5185 (GCVE-0-2026-5185)
Vulnerability from nvd – Published: 2026-03-31 06:45 – Updated: 2026-03-31 18:04
VLAI
EPSS
VEX
Title
Nothings stb_image Multi-frame GIF File stb_image.h stbi__gif_load_next heap-based overflow
Summary
A security flaw has been discovered in Nothings stb_image up to 2.30. This affects the function stbi__gif_load_next of the file stb_image.h of the component Multi-frame GIF File Handler. The manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:04 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/354253 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/354253/cti | signaturepermissions-required |
| https://vuldb.com/submit/780390 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nothings | stb_image |
Affected:
2.0
Affected: 2.1 Affected: 2.2 Affected: 2.3 Affected: 2.4 Affected: 2.5 Affected: 2.6 Affected: 2.7 Affected: 2.8 Affected: 2.9 Affected: 2.10 Affected: 2.11 Affected: 2.12 Affected: 2.13 Affected: 2.14 Affected: 2.15 Affected: 2.16 Affected: 2.17 Affected: 2.18 Affected: 2.19 Affected: 2.20 Affected: 2.21 Affected: 2.22 Affected: 2.23 Affected: 2.24 Affected: 2.25 Affected: 2.26 Affected: 2.27 Affected: 2.28 Affected: 2.29 Affected: 2.30 |
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CVE-2023-45667 (GCVE-0-2023-45667)
Vulnerability from nvd – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Null pointer dereference because of an uninitialized variable in stb_image
Summary
stb_image is a single file MIT licensed library for processing images.
If `stbi__load_gif_main` in `stbi_load_gif_from_memory` fails it returns a null pointer and may keep the `z` variable uninitialized. In case the caller also sets the flip vertically flag, it continues and calls `stbi__vertical_flip_slices` with the null pointer result value and the uninitialized `z` value. This may result in a program crash.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:07 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
6 references
Impacted products
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CVE-2023-45666 (GCVE-0-2023-45666)
Vulnerability from nvd – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Possible double-free or memory leak in stbi__load_gif_main in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. It may look like `stbi__load_gif_main` doesn’t give guarantees about the content of output value `*delays` upon failure. Although it sets `*delays` to zero at the beginning, it doesn’t do it in case the image is not recognized as GIF and a call to `stbi__load_gif_main_outofmem` only frees possibly allocated memory in `*delays` without resetting it to zero. Thus it would be fair to say the caller of `stbi__load_gif_main` is responsible to free the allocated memory in `*delays` only if `stbi__load_gif_main` returns a non null value. However at the same time the function may return null value, but fail to free the memory in `*delays` if internally `stbi__convert_format` is called and fails. Thus the issue may lead to a memory leak if the caller chooses to free `delays` only when `stbi__load_gif_main` didn’t fail or to a double-free if the `delays` is always freed
Severity
7.3 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:07 UTC
CWE
- CWE-415 - Double Free
Assigner
References
6 references
Impacted products
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CVE-2023-45664 (GCVE-0-2023-45664)
Vulnerability from nvd – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Double-free in stbi__load_gif_main_outofmem in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. A crafted image file can trigger `stbi__load_gif_main_outofmem` attempt to double-free the out variable. This happens in `stbi__load_gif_main` because when the `layers * stride` value is zero the behavior is implementation defined, but common that realloc frees the old memory and returns null pointer. Since it attempts to double-free the memory a few lines below the first “free”, the issue can be potentially exploited only in a multi-threaded environment. In the worst case this may lead to code execution.
Severity
7.3 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:20 UTC
CWE
- CWE-415 - Double Free
Assigner
References
5 references
Impacted products
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CVE-2023-45663 (GCVE-0-2023-45663)
Vulnerability from nvd – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Disclosure of uninitialized memory in stbi__tga_load in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:20 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
7 references
Impacted products
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CVE-2023-45662 (GCVE-0-2023-45662)
Vulnerability from nvd – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Multi-byte read heap buffer overflow in stbi__vertical_flip in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. When `stbi_set_flip_vertically_on_load` is set to `TRUE` and `req_comp` is set to a number that doesn’t match the real number of components per pixel, the library attempts to flip the image vertically. A crafted image file can trigger `memcpy` out-of-bounds read because `bytes_per_pixel` used to calculate `bytes_per_row` doesn’t match the real image array dimensions.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:23 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
5 references
Impacted products
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CVE-2023-45661 (GCVE-0-2023-45661)
Vulnerability from nvd – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Wild address read in stbi__gif_load_next in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. A crafted image file may trigger out of bounds memcpy read in `stbi__gif_load_next`. This happens because two_back points to a memory address lower than the start of the buffer out. This issue may be used to leak internal memory allocation information.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:27 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
6 references
Impacted products
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CVE-2026-5185 (GCVE-0-2026-5185)
Vulnerability from cvelistv5 – Published: 2026-03-31 06:45 – Updated: 2026-03-31 18:04
VLAI
EPSS
VEX
Title
Nothings stb_image Multi-frame GIF File stb_image.h stbi__gif_load_next heap-based overflow
Summary
A security flaw has been discovered in Nothings stb_image up to 2.30. This affects the function stbi__gif_load_next of the file stb_image.h of the component Multi-frame GIF File Handler. The manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:04 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/354253 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/354253/cti | signaturepermissions-required |
| https://vuldb.com/submit/780390 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nothings | stb_image |
Affected:
2.0
Affected: 2.1 Affected: 2.2 Affected: 2.3 Affected: 2.4 Affected: 2.5 Affected: 2.6 Affected: 2.7 Affected: 2.8 Affected: 2.9 Affected: 2.10 Affected: 2.11 Affected: 2.12 Affected: 2.13 Affected: 2.14 Affected: 2.15 Affected: 2.16 Affected: 2.17 Affected: 2.18 Affected: 2.19 Affected: 2.20 Affected: 2.21 Affected: 2.22 Affected: 2.23 Affected: 2.24 Affected: 2.25 Affected: 2.26 Affected: 2.27 Affected: 2.28 Affected: 2.29 Affected: 2.30 |
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CVE-2023-45667 (GCVE-0-2023-45667)
Vulnerability from cvelistv5 – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Null pointer dereference because of an uninitialized variable in stb_image
Summary
stb_image is a single file MIT licensed library for processing images.
If `stbi__load_gif_main` in `stbi_load_gif_from_memory` fails it returns a null pointer and may keep the `z` variable uninitialized. In case the caller also sets the flip vertically flag, it continues and calls `stbi__vertical_flip_slices` with the null pointer result value and the uninitialized `z` value. This may result in a program crash.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:07 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
6 references
Impacted products
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CVE-2023-45666 (GCVE-0-2023-45666)
Vulnerability from cvelistv5 – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Possible double-free or memory leak in stbi__load_gif_main in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. It may look like `stbi__load_gif_main` doesn’t give guarantees about the content of output value `*delays` upon failure. Although it sets `*delays` to zero at the beginning, it doesn’t do it in case the image is not recognized as GIF and a call to `stbi__load_gif_main_outofmem` only frees possibly allocated memory in `*delays` without resetting it to zero. Thus it would be fair to say the caller of `stbi__load_gif_main` is responsible to free the allocated memory in `*delays` only if `stbi__load_gif_main` returns a non null value. However at the same time the function may return null value, but fail to free the memory in `*delays` if internally `stbi__convert_format` is called and fails. Thus the issue may lead to a memory leak if the caller chooses to free `delays` only when `stbi__load_gif_main` didn’t fail or to a double-free if the `delays` is always freed
Severity
7.3 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:07 UTC
CWE
- CWE-415 - Double Free
Assigner
References
6 references
Impacted products
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CVE-2023-45664 (GCVE-0-2023-45664)
Vulnerability from cvelistv5 – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Double-free in stbi__load_gif_main_outofmem in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. A crafted image file can trigger `stbi__load_gif_main_outofmem` attempt to double-free the out variable. This happens in `stbi__load_gif_main` because when the `layers * stride` value is zero the behavior is implementation defined, but common that realloc frees the old memory and returns null pointer. Since it attempts to double-free the memory a few lines below the first “free”, the issue can be potentially exploited only in a multi-threaded environment. In the worst case this may lead to code execution.
Severity
7.3 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:20 UTC
CWE
- CWE-415 - Double Free
Assigner
References
5 references
Impacted products
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CVE-2023-45663 (GCVE-0-2023-45663)
Vulnerability from cvelistv5 – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Disclosure of uninitialized memory in stbi__tga_load in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:20 UTC
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
7 references
Impacted products
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CVE-2023-45662 (GCVE-0-2023-45662)
Vulnerability from cvelistv5 – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Multi-byte read heap buffer overflow in stbi__vertical_flip in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. When `stbi_set_flip_vertically_on_load` is set to `TRUE` and `req_comp` is set to a number that doesn’t match the real number of components per pixel, the library attempts to flip the image vertically. A crafted image file can trigger `memcpy` out-of-bounds read because `bytes_per_pixel` used to calculate `bytes_per_row` doesn’t match the real image array dimensions.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:23 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
5 references
Impacted products
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CVE-2023-45661 (GCVE-0-2023-45661)
Vulnerability from cvelistv5 – Published: 2023-10-20 23:26 – Updated: 2025-02-13 17:14
VLAI
EPSS
VEX
Title
Wild address read in stbi__gif_load_next in stb_image
Summary
stb_image is a single file MIT licensed library for processing images. A crafted image file may trigger out of bounds memcpy read in `stbi__gif_load_next`. This happens because two_back points to a memory address lower than the start of the buffer out. This issue may be used to leak internal memory allocation information.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-12 14:27 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
6 references
Impacted products
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"value": "stb_image is a single file MIT licensed library for processing images. A crafted image file may trigger out of bounds memcpy read in `stbi__gif_load_next`. This happens because two_back points to a memory address lower than the start of the buffer out. This issue may be used to leak internal memory allocation information."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125: Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-04T05:06:30.004Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/"
},
{
"name": "https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L6817",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L6817"
},
{
"name": "https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L7021-L7022",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L7021-L7022"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVQ7ONFH5GWLMXYEAJG32A3EUKUCEVCR/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QVABVF4GEM6BYD5L4L64RCRSXUHY6LGN/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NMXKOKPP4BKTNUTF5KSRDQAWOUILQZNO/"
}
],
"source": {
"advisory": "GHSA-hhff-9hgq-wrvv",
"discovery": "UNKNOWN"
},
"title": "Wild address read in stbi__gif_load_next in stb_image"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-45661",
"datePublished": "2023-10-20T23:26:08.605Z",
"dateReserved": "2023-10-10T14:36:40.859Z",
"dateUpdated": "2025-02-13T17:14:04.182Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}