Pillow: Image.quantize() with empty palette leaks uninitialized stack memory
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| python-pillow | Pillow | affected |
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No data.
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| Python-pillow | Pillow |
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| Source | ID | Title |
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Github GHSA |
GHSA-rfgq-q3w2-pmv2 | Pillow: Image.quantize() with empty palette leaks uninitialized stack memory |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.339% probability within 30 days)
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ssvc
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Python
Python pillow |
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| CPEs | cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* | |
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Python
Python pillow |
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| Weaknesses | CWE-908 | |
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threat_severity
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cvssV3_1
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| First Time appeared |
Python-pillow
Python-pillow pillow |
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Python-pillow
Python-pillow pillow |
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| Description | Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack memory when Image.quantize() uses an empty palette. ImagingPaletteCacheUpdate() leaves a local cache array uninitialized when the palette has zero entries, and the conversion path emits those bytes as output pixel indices. An attacker who controls the palette image can obtain stack contents from a returned PNG or GIF. This can disclose addresses and stack-canary data without an out-of-bounds access, memory corruption, or process crash. This issue is fixed in version 13.0.0. | |
| Title | Pillow: Image.quantize() with empty palette leaks uninitialized stack memory | |
| Weaknesses | CWE-457 | |
| References |
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| Metrics |
cvssV4_0
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