What’s Vulnerable › Vulnerabilities

CVE-2016-7970

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-03-03 · updated 2026-06-17
• Weakness: CWE-119

Description

Buffer overflow in the calc_coeff function in libass/ass_blur.c in libass before 0.13.4 allows remote attackers to cause a denial of service via unspecified vectors.

Affected products

• Fedoraproject Fedora: 23, 24, 25
• Libass Project Libass: through 0.13.3

References

• http://www.openwall.com/lists/oss-security/2016/10/05/2
• http://www.securityfocus.com/bid/93358
• https://bugzilla.redhat.com/show_bug.cgi?id=1381960
• https://github.com/libass/libass/pull/240/commits/08e754612019ed84d1db0d1fc4f5798248decd75
• https://github.com/libass/libass/releases/tag/0.13.4
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KW6DNERYHPI5Y6SQYU3XKTVSCOWMIHUC/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7JJ2SGVOX6UQQIRMVC3QACJLKHE2PYN/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUOUOK3VULMMZTNSCRFCNPDAPDWAVK7X/
• https://security.gentoo.org/glsa/201702-25
• http://www.openwall.com/lists/oss-security/2016/10/05/2
• http://www.securityfocus.com/bid/93358
• https://bugzilla.redhat.com/show_bug.cgi?id=1381960

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