Vulnerability Description
flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 2.5.33 does not allocate enough memory for grammars containing (1) REJECT statements or (2) trailing context rules, which causes flex to generate code that contains a buffer overflow that might allow context-dependent attackers to execute arbitrary code.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Westes | Flex | <= 2.5.32 |
Related Weaknesses (CWE)
References
- http://prdownloads.sourceforge.net/flex/flex-2.5.33.tar.bz2?downloadProduct
- http://secunia.com/advisories/19071PatchVendor Advisory
- http://secunia.com/advisories/19126Vendor Advisory
- http://secunia.com/advisories/19228Vendor Advisory
- http://secunia.com/advisories/19424PatchVendor Advisory
- http://securityreason.com/securityalert/570Third Party Advisory
- http://sourceforge.net/mailarchive/forum.php?thread_name=20060223020346.GA11231%Release Notes
- http://www.gentoo.org/security/en/glsa/glsa-200603-07.xmlThird Party Advisory
- http://www.osvdb.org/23440Broken LinkPatch
- http://www.securityfocus.com/bid/16896PatchThird Party AdvisoryVDB Entry
- http://www.us.debian.org/security/2006/dsa-1020PatchVendor Advisory
- http://www.vupen.com/english/advisories/2006/0770Broken LinkURL Repurposed
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24995VDB Entry
- https://usn.ubuntu.com/260-1/Third Party Advisory
- http://prdownloads.sourceforge.net/flex/flex-2.5.33.tar.bz2?downloadProduct
FAQ
What is CVE-2006-0459?
CVE-2006-0459 is a vulnerability with a CVSS score of 7.5 (HIGH). flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 2.5.33 does not allocate enough memory for grammars containing (1) REJECT statements or (2) trailing context rule...
How severe is CVE-2006-0459?
CVE-2006-0459 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2006-0459?
Check the references section above for vendor advisories and patch information. Affected products include: Westes Flex.