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CVE-2005-2991

ncompress: insecure tmp file handling may lead to file overwrite

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Severity

Low

Red Hat Product Security

5

CVSS 3.1

Review impact separately from score.

Published · November 9, 2021

Updated · November 21, 2025

Description

ncompress 4.2.4 and earlier allows local users to overwrite arbitrary files via a symlink attack on temporary files using (1) zdiff or (2) zcmp, a different vulnerability than CVE-2004-0970.

Statement

Not vulnerable. This issue did not affect the ncompress packages as distributed with Red Hat Enterprise Linux 2.1, 3, or 4.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L

CWE-59 · Improper Link Resolution Before File Access ('Link Following')