DescriptionBuffer 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libass (PTS)bullseye1:0.15.0-2fixed
sid, trixie1:0.17.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libasssourcewheezy(not affected)
libasssourcejessie(not affected)


[jessie] - libass <not-affected> (Vulnerable code introduced later)
[wheezy] - libass <not-affected> (Vulnerable code first introduced in July 2015)
Fixed by:
Vulnerable function calc_coeff introduced in: (0.13.0)

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