vulnwire
7.5high

CVE-2006-0459

flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 2.5.33 does not allocate enough memory for grammars…

Published 20 y ago · modified 4 mo ago · JSON

CVSS
7.5
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.7%
percentile 92%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

4.71% probability of exploitation in the next 30 days, higher than 92% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • prdownloads.sourceforge.net /flex/flex-2.5.33.tar.bz2?download · x_refsource_CONFIRM, x_transferred
  • osvdb.org /23440 · vdb-entry, x_refsource_OSVDB, x_transferred
  • us.debian.org /security/2006/dsa-1020 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • vupen.com /english/advisories/2006/0770 · vdb-entry, x_refsource_VUPEN, x_transferred
  • secunia.com /advisories/19071 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • securityfocus.com /bid/16896 · vdb-entry, x_refsource_BID, x_transferred
  • exchange.xforce.ibmcloud.com /vulnerabilities/24995 · vdb-entry, x_refsource_XF, x_transferred
  • gentoo.org /security/en/glsa/glsa-200603-07.xml · vendor-advisory, x_refsource_GENTOO, x_transferred
  • secunia.com /advisories/19228 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • secunia.com /advisories/19424 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • securityreason.com /securityalert/570 · third-party-advisory, x_refsource_SREASON, x_transferred
  • secunia.com /advisories/19126 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • usn.ubuntu.com /260-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • sourceforge.net /mailarchive/forum.php?thread_name=20060223020346.GA11231%40tabitha.home.tldz.org&forum_na · mailing-list, x_refsource_MLIST, x_transferred

Sources

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