AI description
CVE-2025-64505 is a buffer overflow vulnerability found in libpng versions 1.6.0 through 1.6.50. Specifically, it is a heap buffer over-read in `png_do_quantize` that occurs due to a malformed palette index. This vulnerability requires user interaction, as it is triggered when processing a malicious PNG file. Successful exploitation could lead to information disclosure and/or a denial of service. In certain heap configurations, it may even enable arbitrary code execution via heap corruption.
- Description
- LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
- Products
- libpng
CVSS 3.1
- Type
- Secondary
- Base score
- 6.1
- Impact score
- 4.2
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- Severity
- MEDIUM
- security-advisories@github.com
- CWE-125
- Hype score
- Not currently trending
CVE-2025-64505 LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a… https://t.co/CvZnawlNrV
@CVEnew
24 Nov 2025
162 Impressions
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CVE-2025-64505 libpng 1.6.51 https://t.co/lBm5mhMQNG
@VulmonFeeds
22 Nov 2025
41 Impressions
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libpng 1.6.51: Four buffer overflow vulnerabilities fixed https://t.co/qBuxMJIllC CVE-2025-64505, CVE-2025-64506, CVE-2025-64720: Out-of-bounds reads, can result in information disclosure, denial of service CVE-2025-65018: Heap buffer overflow, may enable arbitrary code execution
@oss_security
22 Nov 2025
7010 Impressions
8 Retweets
53 Likes
21 Bookmarks
1 Reply
0 Quotes
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