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TI-2005-00930 Aliases CVE-2005-0990GHSA-358m-xcjh-x4vp

unshar (unshar.c) in sharutils 4.2.1 allows local users to overwrite arbitrary files via…

Priority LOW 11Published · Updated

Key facts

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

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

Summary

unshar (unshar.c) in sharutils 4.2.1 allows local users to overwrite arbitrary files via a symlink attack on the unsh.X temporary file.

Why it matters now

EPSS 0.00362 30th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

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:gnu:sharutils:4.2.1:*:*:*:*:*:*:*4.2.1VulnerableGNU
  • cpe:2.3:a:gnu:sharutils:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·GNU

Remediation

Red Hat 1 advisory

  • RHSA-2005:377 Released 2005-04-26 · Red Hat rating Low
    sharutils security update
    • Red Hat Desktop version 3 sharutils-4.2.1-16.2, sharutils-4.2.1-16.2.i386
    • Red Hat Enterprise Linux AS version 3 sharutils-4.2.1-16.2, sharutils-4.2.1-16.2.i386, sharutils-4.2.1-16.2.ia64 +1
    • Red Hat Enterprise Linux AS version 4 sharutils-4.2.1-22.2, sharutils-4.2.1-22.2.i386, sharutils-4.2.1-22.2.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 sharutils-4.2.1-22.2, sharutils-4.2.1-22.2.i386
    • Red Hat Enterprise Linux ES version 3 sharutils-4.2.1-16.2, sharutils-4.2.1-16.2.i386, sharutils-4.2.1-16.2.ia64
    • Red Hat Enterprise Linux ES version 4 sharutils-4.2.1-22.2, sharutils-4.2.1-22.2.i386, sharutils-4.2.1-22.2.ia64
    • Red Hat Enterprise Linux WS version 3 sharutils-4.2.1-16.2, sharutils-4.2.1-16.2.i386, sharutils-4.2.1-16.2.ia64
    • Red Hat Enterprise Linux WS version 4 sharutils-4.2.1-22.2, sharutils-4.2.1-22.2.i386, sharutils-4.2.1-22.2.ia64

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2005:377
Red Hat Enterprise Linux AS version 3Fixed RHSA-2005:377
Red Hat Enterprise Linux AS version 4Fixed RHSA-2005:377
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2005:377
Red Hat Enterprise Linux ES version 3Fixed RHSA-2005:377
Red Hat Enterprise Linux ES version 4Fixed RHSA-2005:377
Red Hat Enterprise Linux WS version 3Fixed RHSA-2005:377
Red Hat Enterprise Linux WS version 4Fixed RHSA-2005:377

Timeline

  1. 2026-10-02 Threatist record created from CVE-2005-0990
  2. 2026-10-03 Alias added: GHSA-358m-xcjh-x4vp

References

Patch 1

Advisory 3

Other 1

  • TI-2018-15752 Sharutils sharutils (unshar command) version 4.15.2 contains a Buffer Overflow… CVSS 3.0HIGH 7.8
  • TI-2004-01649 Multiple buffer overflows in sharutils 4.2.1 and earlier may allow attackers to execute… CVSS 2.0HIGH 7.5
  • TI-2002-00172 uudecode, as available in the sharutils package before 4.2.1, does not check whether the… CVSS 2.0HIGH 7.2
  • TI-2004-01648 Stack-based buffer overflow in shar in GNU sharutils 4.2.1 allows local users to execute… CVSS 2.0MEDIUM 4.6

Sources

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