Vulnerability CVE-2016-6354
Published: 2016-09-21

Description:
Heap-based buffer overflow in the yy_get_next_buffer function in Flex before 2.6.1 might allow context-dependent attackers to cause a denial of service or possibly execute arbitrary code via vectors involving num_to_read.

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Flex project -> FLEX 
Debian -> Debian linux 

 References:
http://www.debian.org/security/2016/dsa-3653
http://www.openwall.com/lists/oss-security/2016/07/18/8
http://www.openwall.com/lists/oss-security/2016/07/26/12
https://github.com/westes/flex/commit/a5cbe929ac3255d371e698f62dc256afe7006466
https://security.gentoo.org/glsa/201701-31
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