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Fencer Vulns
medium 5.0

CVE-2003-0020 json

Apache does not filter terminal escape sequences from its error logs, which could make it easier for attackers to insert those sequences in…

published 2003-03-18 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0020

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
16.5%
EPSS 16.5% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

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.

Patch / fix

  • apache http_server 1.3.31, 2.0.49
  • apache2 Debian 14, Debian 13, Debian 12 2.0.49

debian advisories DEBIAN-CVE-2003-0020

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2003-0020 updated

security flaw

  • Red Hat Enterprise Linux ES version 2.1 Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2003:244
  • Red Hat Linux 7.1 Red Hat Linux 7.2 Red Hat Linux 7.3
    fixed: vendor fix RHSA-2003:243
  • Red Hat Linux 8.0 Red Hat Linux 9
    fixed: vendor fix RHSA-2003:139
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2003:244
  • Red Hat Stronghold 3
    fixed: vendor fix RHSA-2003:104
  • Red Hat Stronghold 4
    fixed: vendor fix RHSA-2003:082
  • Red Hat Stronghold 4 for Red Hat Enterprise Linux
    fixed: vendor fix RHSA-2003:083

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

16.46% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.