CVE-2009-1215

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Summary

CVECVE-2009-1215
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-04-01 10:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionRace condition in GNU screen 4.0.3 allows local users to create or overwrite arbitrary files via a symlink attack on the /tmp/screen-exchange temporary file.

Risk And Classification

Primary CVSS: v2.0 1.9 from [email protected]

AV:L/AC:M/Au:N/C:N/I:P/A:N

Problem Types: CWE-362 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:L/AC:M/Au:N/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Gnu Screen 4.0.3 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Bug 492104 – CVE-2009-1214 CVE-2009-1215 screen: Unsafe usage of temporary file af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
oss-security - CVE request -- zsh, XFree86-xfs/xorg-x11-xfs, screen af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
GNU screen Insecure Temporary File Creation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
#521123 - /tmp/screen-exchange still unsafe - Debian Bug report logs af854a3a-2127-422b-91ae-364da2661108 bugs.debian.org
Bug #315993 “Insecure creation of /tmp/screen-exchange (symlink ...” : Bugs : screen package : Ubuntu af854a3a-2127-422b-91ae-364da2661108 bugs.launchpad.net
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
GNU Screen - Bugs: bug #25296, [Patch] Insecure creation of... [Savannah] af854a3a-2127-422b-91ae-364da2661108 savannah.gnu.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2009-04-02Tomas HogerRed Hat does not consider this to be a security issue. The checks implemented by screen to protect against race condition attacks on /tmp/screen-exchange file provide sufficient protection for this rarely-used buffer exchange feature. For more details, see https://bugzilla.redhat.com/show_bug.cgi?id=492104

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