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CVE-2007-2026

7.8 · HIGH

The gnu regular expression code in file 4.20 allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted document with a large number of line feed characters, wh…

Published Apr 13, 2007amavisEPSS 2.09%

Overview

CVE-2007-2026 is a high-severity vulnerability affecting amavis virus_scanner. It was published on April 13, 2007 and has a CVSS 2.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The gnu regular expression code in file 4.20 allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted document with a large number of line feed characters, which is not well handled by OS/2 REXX regular expressions that use wildcards, as originally reported for AMaViS.

Remediation

Check the references section for vendor advisories and patches from amavis. Update virus_scanner to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refsecunia.com/advisories/24918Refsecunia.com/advisories/25394Refsecunia.com/advisories/25544Refsecunia.com/advisories/25578Refsourceforge.net/mailarchive/forum.php?thread_name=755AF709E5B77E6EA58479D5%40foxx.lsit.ucsb.edu&forum_name=amavis-userRefwww.amavis.org/security/asa-2007-3.txtRefwww.gentoo.org/security/en/glsa/glsa-200704-13.xmlRefwww.mandriva.com/security/advisories?name=MDKSA-2007:114Refwww.securityfocus.com/archive/1/469520/30/6420/threadedRefwww.securityfocus.com/bid/24146

How CyberStrike helps

Frequently asked questions

What is CVE-2007-2026?

CVE-2007-2026 is a high-severity vulnerability affecting amavis virus_scanner. It was published on April 13, 2007 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2007-2026?

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2007-2026?

Check the references section for vendor advisories and patches from amavis. Update virus_scanner to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2007-2026?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-2026 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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