What’s Vulnerable › Vulnerabilities

CVE-2017-9996

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-06-28 · updated 2026-06-17
• Weakness: CWE-119

Description

The cdxl_decode_frame function in libavcodec/cdxl.c in FFmpeg 2.8.x before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 does not exclude the CHUNKY format, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.

Affected products

• FFmpeg: 2.8, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5 (+28)

References

• http://www.securityfocus.com/bid/99323
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1378
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1427
• https://github.com/FFmpeg/FFmpeg/commit/1e42736b95065c69a7481d0cf55247024f54b660
• https://github.com/FFmpeg/FFmpeg/commit/e1b60aad77c27ed5d4dfc11e5e6a05a38c70489d
• http://www.securityfocus.com/bid/99323
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1378
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1427
• https://github.com/FFmpeg/FFmpeg/commit/1e42736b95065c69a7481d0cf55247024f54b660
• https://github.com/FFmpeg/FFmpeg/commit/e1b60aad77c27ed5d4dfc11e5e6a05a38c70489d

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