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 containing (1) REJECT statements or (2) trailing context
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.70% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 91.5% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2006-03-29 23:00Z20 YR AGO
- Last updated
- 2024-08-07 16:34Z2 YR AGO
- Reserved
- 2006-01-27
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- 147dfc90a0681d976a53fce41bf623bfb4b79713630a819a0adebf219de33fae
05 Affected products
06 References
- prdownloads.sourceforge.nethttp://prdownloads.sourceforge.net/flex/flex-2.5.33.tar.bz2?download
- www.osvdb.org23440http://www.osvdb.org/23440
- www.us.debian.orgDSA-1020http://www.us.debian.org/security/2006/dsa-1020
- www.vupen.comADV-2006-0770http://www.vupen.com/english/advisories/2006/0770
- secunia.com19071http://secunia.com/advisories/19071
- www.securityfocus.com16896http://www.securityfocus.com/bid/16896
- exchange.xforce.ibmcloud.comflex-bypass-security(24995)https://exchange.xforce.ibmcloud.com/vulnerabilities/24995
- www.gentoo.orgGLSA-200603-07http://www.gentoo.org/security/en/glsa/glsa-200603-07.xml
- secunia.com19228http://secunia.com/advisories/19228
- secunia.com19424http://secunia.com/advisories/19424
- securityreason.com570http://securityreason.com/securityalert/570
- secunia.com19126http://secunia.com/advisories/19126
- usn.ubuntu.comUSN-260-1https://usn.ubuntu.com/260-1/
- sourceforge.net[flex-announce] 20060222 flex 2.5.33 releasedhttp://sourceforge.net/mailarchive/forum.php?thread_name=20060223020346.GA11231%40tabitha.home.tldz.org&forum_name=flex-announce
07 Fixed in
Debian 12
- flex Fixed in 2.5.33-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- flex Fixed in 2.5.33-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- flex Fixed in 2.5.33-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.