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TI-2005-00425 Aliases CVE-2005-0468GHSA-7xw6-7f8j-hr4m

Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based…

Priority MEDIUM 55Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.

Why it matters now

EPSS 0.27073 98th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ncsa:telnet:c:*:*:*:*:*:*:*cVulnerableNcsa
  • cpe:2.3:a:ncsa:telnet:c:*:*:*:*:*:*:* Versions c Vulnerable ·Ncsa

Remediation

Red Hat 2 advisories

  • RHSA-2005:330 Released 2005-03-30 · Red Hat rating Important
    krb5 security update
    • Red Hat Desktop version 3 krb5-1.2.7-42, krb5-devel-1.2.7-42, krb5-devel-1.2.7-42.i386 +6
    • Red Hat Enterprise Linux AS version 3 krb5-1.2.7-42, krb5-devel-1.2.7-42, krb5-devel-1.2.7-42.i386 +14
    • Red Hat Enterprise Linux AS version 4 krb5-1.3.4-12, krb5-devel-1.3.4-12, krb5-devel-1.3.4-12.i386 +14
    • Red Hat Enterprise Linux Desktop version 4 krb5-1.3.4-12, krb5-devel-1.3.4-12, krb5-devel-1.3.4-12.i386 +6
    • Red Hat Enterprise Linux ES version 3 krb5-1.2.7-42, krb5-devel-1.2.7-42, krb5-devel-1.2.7-42.i386 +10
    • Red Hat Enterprise Linux ES version 4 krb5-1.3.4-12, krb5-devel-1.3.4-12, krb5-devel-1.3.4-12.i386 +10
    • Red Hat Enterprise Linux WS version 3 krb5-1.2.7-42, krb5-devel-1.2.7-42, krb5-devel-1.2.7-42.i386 +10
    • Red Hat Enterprise Linux WS version 4 krb5-1.3.4-12, krb5-devel-1.3.4-12, krb5-devel-1.3.4-12.i386 +10
  • RHSA-2005:327 Released 2005-03-28 · Red Hat rating Important
    telnet security update
    • Red Hat Desktop version 3 telnet-1:0.17-26.EL3.2, telnet-1:0.17-26.EL3.2.i386, telnet-server-1:0.17-26.EL3.2 +1
    • Red Hat Enterprise Linux AS version 3 telnet-1:0.17-26.EL3.2, telnet-1:0.17-26.EL3.2.i386, telnet-1:0.17-26.EL3.2.ia64 +5
    • Red Hat Enterprise Linux AS version 4 telnet-1:0.17-31.EL4.2, telnet-1:0.17-31.EL4.2.i386, telnet-1:0.17-31.EL4.2.ia64 +5
    • Red Hat Enterprise Linux Desktop version 4 telnet-1:0.17-31.EL4.2, telnet-1:0.17-31.EL4.2.i386, telnet-server-1:0.17-31.EL4.2 +1
    • Red Hat Enterprise Linux ES version 3 telnet-1:0.17-26.EL3.2, telnet-1:0.17-26.EL3.2.i386, telnet-1:0.17-26.EL3.2.ia64 +3
    • Red Hat Enterprise Linux ES version 4 telnet-1:0.17-31.EL4.2, telnet-1:0.17-31.EL4.2.i386, telnet-1:0.17-31.EL4.2.ia64 +3
    • Red Hat Enterprise Linux WS version 3 telnet-1:0.17-26.EL3.2, telnet-1:0.17-26.EL3.2.i386, telnet-1:0.17-26.EL3.2.ia64 +3
    • Red Hat Enterprise Linux WS version 4 telnet-1:0.17-31.EL4.2, telnet-1:0.17-31.EL4.2.i386, telnet-1:0.17-31.EL4.2.ia64 +3

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2005:327, RHSA-2005:330
Red Hat Enterprise Linux AS version 3Fixed RHSA-2005:327, RHSA-2005:330
Red Hat Enterprise Linux AS version 4Fixed RHSA-2005:327, RHSA-2005:330
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2005:327, RHSA-2005:330
Red Hat Enterprise Linux ES version 3Fixed RHSA-2005:327, RHSA-2005:330
Red Hat Enterprise Linux ES version 4Fixed RHSA-2005:327, RHSA-2005:330
Red Hat Enterprise Linux WS version 3Fixed RHSA-2005:327, RHSA-2005:330
Red Hat Enterprise Linux WS version 4Fixed RHSA-2005:327, RHSA-2005:330

Timeline

  1. 2026-10-02 Threatist record created from CVE-2005-0468
  2. 2026-10-03 Alias added: GHSA-7xw6-7f8j-hr4m

References

Patch 4

Advisory 10

Other 1

  • TI-2005-00426 Buffer overflow in the slc_add_reply function in various BSD-based Telnet clients, when… CVSS 2.0HIGH 7.5
  • TI-1999-01039 The default configuration of NCSA Telnet package for Macintosh and PC enables FTP, even… CVSS 2.0HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences