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Family: Gentoo Local Security Checks --> Category: infos
[GLSA-200603-07] flex: Potential insecure code generation Vulnerability Scan
Vulnerability Scan Summary
flex: Potential insecure code generation
Detailed Explanation for this Vulnerability Test
The remote host is affected by the vulnerability described in GLSA-200603-07
(flex: Potential insecure code generation)
Chris Moore discovered a buffer overflow in a special class of
lexicographical scanners generated by flex. Only scanners generated by
grammars which use either REJECT, or rules with a "variable trailing
context" might be at risk.
Impact
A possible hacker could feed malicious input to an application making
use of an affected scanner and trigger the buffer overflow, potentially
resulting in the execution of arbitrary code.
Workaround
Avoid using vulnerable grammar in your flex scanners.
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0459
Solution:
All flex users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-devel/flex-2.5.33-r1"
Threat Level: Medium
Click HERE for more information and discussions on this network vulnerability scan.
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