FFmpeg 0.10 through 9.0.2 contains an uninitialized memory disclosure vulnerability in sunrast_decode_frame() in libavcodec/sunrast.c that leaves decoded image regions unwritten for truncated input. Attackers can supply a crafted truncated Sun Raster image, RLE-encoded or raw, to leak stale heap contents such as allocator metadata through the decoded picture.
Metrics
Affected Vendors & Products
References
History
Wed, 11 Nov 2026 02:45:00 +0000
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| Description | FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output. | FFmpeg 0.10 through 9.0.2 contains an uninitialized memory disclosure vulnerability in sunrast_decode_frame() in libavcodec/sunrast.c that leaves decoded image regions unwritten for truncated input. Attackers can supply a crafted truncated Sun Raster image, RLE-encoded or raw, to leak stale heap contents such as allocator metadata through the decoded picture. |
Mon, 02 Nov 2026 15:30:00 +0000
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ssvc
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Sun, 01 Nov 2026 12:30:00 +0000
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threat_severity
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threat_severity
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Sun, 01 Nov 2026 01:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output. | |
| Title | FFmpeg 0.10 through 9.0.2 Uninitialized Memory Disclosure via Sun Raster Decoder | |
| First Time appeared |
Ffmpeg
Ffmpeg ffmpeg |
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| Weaknesses | CWE-908 | |
| CPEs | cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ffmpeg
Ffmpeg ffmpeg |
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cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-11-01T00:57:10.732Z
Updated: 2026-11-11T02:37:14.008Z
Reserved: 2026-10-31T22:05:58.146Z
Link: CVE-2026-120245
Updated: 2026-11-02T14:39:58.350Z
Status : Awaiting Analysis
Published: 2026-11-01T01:17:17.960
Modified: 2026-11-02T19:34:23.993
Link: CVE-2026-120245