CVE-2003-0020

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 16.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2003-03-18 · updated 2026-06-16

Description

Apache does not filter terminal escape sequences from its error logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.

Affected products

Apache HTTP Server: from 1.3.0 before 1.3.31; from 2.0.0 before 2.0.49 — fixed in 1.3.31, 2.0.49

How to fix

Upgrade to a fixed version: Apache HTTP Server 1.3.31, 2.0.49. Check the vendor advisory for mitigations.

References

http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0093.html
http://frontal2.mandriva.com/security/advisories?name=MDKSA-2004:046
http://marc.info/?l=bugtraq&m=104612710031920&w=2
http://marc.info/?l=bugtraq&m=108369640424244&w=2
http://marc.info/?l=bugtraq&m=108437852004207&w=2
http://marc.info/?l=bugtraq&m=108731648532365&w=2
http://security.gentoo.org/glsa/glsa-200405-22.xml
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101555-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-57628-1
http://www.iss.net/security_center/static/11412.php
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:050
http://www.redhat.com/support/errata/RHSA-2003-082.html

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