CVE-2016-7970: Buffer overflow in the calc_coeff function in libass/ass_blur.c in libass before 0.13.4 allows remote attac...

Security readout for executives and security teams

CVE-2016-7970 is a libass buffer overflow that could let a remote attacker crash affected software. The public description names denial of service only, not data theft or code execution. Business impact is mainly service disruption where vulnerable libass versions process untrusted inputs. Exposure is most likely on systems, applications, containers, or distribution packages that include libass versions earlier than 0.13.4. The source bundle does not identify specific downstream products or precise attack vectors, so teams should validate dependency presence rather than assume broad exposure. Address during normal vulnerability remediation, faster for internet-facing or untrusted-input processing systems. The known impact is availability disruption, and evidence for active exploitation is absent in the supplied sources, but vulnerable shared libraries can be embedded and overlooked. Mitigation focus: Upgrade libass to 0.13.4 or a vendor-fixed package version.; Apply relevant Gentoo, Fedora, Red Hat, or platform vendor security updates.; Prioritize systems that process untrusted content through vulnerable libass builds..

Prepared

Jun 13, 2026, 06:02 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.