An issue was discovered in libsndfile 1.2.2 IMA ADPCM codec. The AIFF code path (line 241) was fixed with (sf_count_t) cast, but the WAV code path (line 235) and close path (line 167) were not. When samplesperblock (int) * blocks (int) exceeds INT_MAX, the 32-bit multiplication overflows before being assigned to sf.frames (sf_count_t/int64). With samplesperblock=50000 and blocks=50000, the product 2500000000 overflows to -1794967296. This causes incorrect frame count leading to heap buffer overflow or denial of service. Both values come from the WAV file header and are attacker-controlled. This issue was discovered after an incomplete fix for CVE-2022-33065.
Metrics
Affected Vendors & Products
| Vendors | Products |
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| Libsndfile Project |
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References
History
Thu, 30 Apr 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
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| References |
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Thu, 30 Apr 2026 08:30:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Libsndfile Project
Libsndfile Project libsndfile |
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| Vendors & Products |
Libsndfile Project
Libsndfile Project libsndfile |
Wed, 29 Apr 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| Title | Overflow in WAV Header Field Causes Heap Buffer Overrun in libsndfile's IMA ADPCM Codec | |
| Weaknesses | CWE-119 CWE-20 |
Wed, 29 Apr 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-190 | |
| Metrics |
cvssV3_1
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Wed, 29 Apr 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | An issue was discovered in libsndfile 1.2.2 IMA ADPCM codec. The AIFF code path (line 241) was fixed with (sf_count_t) cast, but the WAV code path (line 235) and close path (line 167) were not. When samplesperblock (int) * blocks (int) exceeds INT_MAX, the 32-bit multiplication overflows before being assigned to sf.frames (sf_count_t/int64). With samplesperblock=50000 and blocks=50000, the product 2500000000 overflows to -1794967296. This causes incorrect frame count leading to heap buffer overflow or denial of service. Both values come from the WAV file header and are attacker-controlled. This issue was discovered after an incomplete fix for CVE-2022-33065. | |
| References |
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MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2026-04-29T00:00:00.000Z
Updated: 2026-04-30T19:42:09.044Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-37555
Vulnrichment
Updated: 2026-04-29T19:30:54.330Z
NVD
Status : Undergoing Analysis
Published: 2026-04-29T16:16:23.410
Modified: 2026-04-30T20:16:24.207
Link: CVE-2026-37555
Redhat
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