CVE-2005-4470

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2005-12-22 · updated 2026-06-16

Description

Heap-based buffer overflow in the get_bhead function in readfile.c in Blender BlenLoader 2.0 through 2.40pre allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a .blend file with a negative bhead.len value, which causes less memory to be allocated than expected, possibly due to an integer overflow.

Affected products

Blender Blenloader: through 2.40_pre; 2.0, 2.04, 2.25, 2.26, 2.27, 2.28 (+13)

References

http://secunia.com/advisories/18176
http://secunia.com/advisories/18178
http://secunia.com/advisories/18452
http://secunia.com/advisories/19754
http://www.debian.org/security/2006/dsa-1039
http://www.gentoo.org/security/en/glsa/glsa-200601-08.xml
http://www.overflow.pl/adv/blenderinteger.txt
http://www.securityfocus.com/archive/1/419907/100/0/threaded
http://www.securityfocus.com/bid/15981
http://www.vupen.com/english/advisories/2005/3032
https://usn.ubuntu.com/238-2/
http://secunia.com/advisories/18176

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