CVE-2005-1111

Race condition in cpio 2.6 and earlier allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by cpio after the decompression is complete.

Published: 2005-05-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-1111 is rated Low Risk (26.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.31%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2005-1111

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.08% 0.31% +0.23%
2 2025-03-17 0.04% 0.08% +0.03%
3 2024-01-27 — 0.04% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-1111

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.0 3.6 [email protected]
3.7 2.0 LOW
AV:L/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 1.9 6.4 [email protected]

Weakness enumeration for CVE-2005-1111

OS Trackers for CVE-2005-1111

vendor priority summary link
debian low CVE-2005-1111 low priority: Debian including 1 source packages (cpio), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2005-1111
redhat medium — https://access.redhat.com/security/cve/CVE-2005-1111
ubuntu medium CVE-2005-1111 medium priority: Ubuntu including 1 source packages (cpio), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-1111

Vendor comments (NVD) for CVE-2005-1111

  • Red Hat (2007-03-14T00:00:00)

    Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.

Affected software / configurations for CVE-2005-1111

Vendor Product Version Raw CPE
gnu cpio <= 2.6 cpe:2.3:a:gnu:cpio:*:*:*:*:*:*:*:*
debian debian_linux 3.0 cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
debian debian_linux 3.1 cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*
canonical ubuntu_linux 4.10 cpe:2.3:o:canonical:ubuntu_linux:4.10:*:*:*:*:*:*:*
canonical ubuntu_linux 5.04 cpe:2.3:o:canonical:ubuntu_linux:5.04:*:*:*:*:*:*:*

References for CVE-2005-1111

URL Tags
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:03.cpio.asc Broken Link
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.2/SCOSA-2006.2.txt Broken Link
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.32/SCOSA-2005.32.txt Broken Link
http://lists.suse.com/archive/suse-security-announce/2006-May/0004.html Broken Link
http://marc.info/?l=bugtraq&m=111342664116120&w=2 Mailing List
http://secunia.com/advisories/16998 Broken Link
http://secunia.com/advisories/17123 Broken Link
http://secunia.com/advisories/17532 Broken Link
http://secunia.com/advisories/18290 Broken Link
http://secunia.com/advisories/18395 Broken Link
http://secunia.com/advisories/20117 Broken Link
http://www.debian.org/security/2005/dsa-846 Third Party Advisory
http://www.osvdb.org/15725 Broken Link
http://www.redhat.com/support/errata/RHSA-2005-378.html Broken Link
http://www.redhat.com/support/errata/RHSA-2005-806.html Broken Link
http://www.securityfocus.com/bid/13159 Broken Link Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/usn-189-1 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A358 Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9783 Broken Link
cvelogic Threat Intelligence