ID CVE-2020-26682
Summary In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.
References
Vulnerable Configurations
  • cpe:2.3:a:libass_project:libass:0.14.0:*:*:*:*:*:*:*
    cpe:2.3:a:libass_project:libass:0.14.0:*:*:*:*:*:*:*
CVSS
Base: 6.8 (as of 23-12-2020 - 22:15)
Impact:
Exploitability:
CWE CWE-190
CAPEC
  • Forced Integer Overflow
    This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
cvss-vector via4 AV:N/AC:M/Au:N/C:P/I:P/A:P
refmap via4
gentoo GLSA-202012-12
misc
mlist [oss-security] 20201119 Re: libass ass_outline.c signed integer overflow
Last major update 23-12-2020 - 22:15
Published 16-10-2020 - 14:15
Last modified 23-12-2020 - 22:15
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