CVE-2014-4607

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-02-12 · updated 2026-06-17
Weakness: CWE-190

Description

Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers to execute arbitrary code via a crafted Literal Run.

Affected products

Oberhumer Liblzo2: before 2.07 — fixed in 2.07
Oberhumer Lzo2: before 2.07 — fixed in 2.07

How to fix

Upgrade to a fixed version: Oberhumer Liblzo2 2.07; Oberhumer Lzo2 2.07. Check the vendor advisory for mitigations.

References

http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html
https://web.archive.org/web/20140701023922/http://www.oberhumer.com/opensource/lzo/
http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html
https://web.archive.org/web/20140701023922/http://www.oberhumer.com/opensource/lzo/

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