Home/CVE/Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 a
CVE

CVE-2006-4018

Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 a

Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 allows remote attackers to execute arbitrary code via a crafted UPX packed file containing sections with large rsize values.

HIGH · CVSS 7.5 EPSS 0.44627
Act now
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

1
clamavall versions
⚠

Public Exploits & PoCs

3
dosClam Anti-Virus ClamAV 0.88.x - UPX Compressed PE File Heap Buffer Overflowverified
pocwww.clamav.net · 0.88.4.htmlwww.clamav.net
pocwww.overflow.pl · clamav_upx_heap.txtwww.overflow.pl
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighRelevant ClamAV Message
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD08 Aug 2006 · 08:04 PM
🔗

References & Sources

19
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://kolab.org/security/kolab-vendor-notice-10.txt
http://secunia.com/advisories/21368Vendor Advisory
http://secunia.com/advisories/21374Vendor Advisory
http://secunia.com/advisories/21433Vendor Advisory
http://secunia.com/advisories/21443Vendor Advisory
http://secunia.com/advisories/21457Vendor Advisory
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