LIBPNG is vulnerable to a buffer overflow in `png_image_read_composite` via incorrect palette premultiplication
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| pnggroup | libpng | affected |
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No data.
No data available yet.
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4396-1 | libpng1.6 security update |
Debian DSA |
DSA-6076-1 | libpng1.6 security update |
Ubuntu USN |
USN-7924-1 | libpng vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.447% probability within 30 days)
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threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
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| First Time appeared |
Libpng
Libpng libpng |
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| CPEs | cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Libpng
Libpng libpng |
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ssvc
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| Description | LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51. | |
| Title | LIBPNG is vulnerable to a buffer overflow in `png_image_read_composite` via incorrect palette premultiplication | |
| Weaknesses | CWE-125 | |
| References |
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| Metrics |
cvssV3_1
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