CVE-2015-5555 Detail

CVE-2015-5555

EPSS

46.32%V3

Vector

Network

Published

2015-08-13
23h00 +00:00

Modified

2018-01-04
18h57 +00:00

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CVE Descriptions

Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.202.508 on Linux, Adobe AIR before 18.0.0.199, Adobe AIR SDK before 18.0.0.199, and Adobe AIR SDK & Compiler before 18.0.0.199 allow attackers to execute arbitrary code by leveraging an unspecified "type confusion," a different vulnerability than CVE-2015-5554, CVE-2015-5558, and CVE-2015-5562.

CVE Informations

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	10		AV:N/AC:L/Au:N/C:C/I:C/A:C	[email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 37874

Publication date : 2015-08-18 22h00 +00:00
Author : Google Security Research
EDB Verified : Yes

Source: https://code.google.com/p/google-security-research/issues/detail?id=409&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id There is a type confusion issue in TextRenderer.setAdvancedAntialiasingTable. If the font, insideCutoff or outsideCutoff are set to objects that are not integers, they are still assumed to be integers. A proof-of-concept is below: var antiAliasEntry_1 = {fontSize:10, insideCutoff:1.61, outsideCutoff:-3.43}; var antiAliasEntry_2 = {fontSize:"", insideCutoff:0.8, outsideCutoff:-0.8}; var arialTable:Array = new Array(antiAliasEntry_1, antiAliasEntry_2); TextRenderer.setAdvancedAntialiasingTable("Arial", "none", "dark", arialTable); This issue is low-impact because the type-confused objects are read into the font and cutoff values, which cannot be directly retreived from script. It is probably possible to determine the value read by doing hit tests on the text that is rendered (to see how big and clipped it is), but this would be fairly difficult. A sample SWF and fla are attached, these samples intentionally crash to demonstrate the issue. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37874.zip