gnome screensaver 2.20.0 getpwuid denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in gnome screensaver 2.20.0 and classified as problematic. Impacted is the function getpwuid. The manipulation leads to denial of service. This vulnerability is traded as CVE-2008-0887. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in gnome screensaver 2.20.0. It has been rated as problematic. This issue affects the function getpwuid. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

gnome-screensaver before 2.22.1, when a remote authentication server is enabled, crashes upon an unlock attempt during a network outage, which allows physically proximate attackers to gain access to the locked session, a related issue to CVE-2007-1859.

The bug was discovered 04/02/2008. The weakness was shared 05/03/2007 as Bug 435773 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2008-0887 since 02/21/2008. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 67673 (Oracle Linux 5 : gnome-screensaver (ELSA-2008-0197)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155121 (Oracle Enterprise Linux gnome-screensaver Security Update (ELSA-2008-0197)).

Upgrading to version 2.20.0 eliminates this vulnerability. A possible mitigation has been published 12 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (41628), Tenable (67673), SecurityFocus (BID 28575†), OSVDB (35531†) and Secunia (SA25065†). The entry VDB-36567 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 67673
Nessus Name: Oracle Linux 5 : gnome-screensaver (ELSA-2008-0197)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 860516
OpenVAS Name: Family Connections argv[1] Parameter Remote Arbitrary Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: screensaver 2.20.0

Timelineinfo

05/03/2007 🔍
05/03/2007 +0 days 🔍
02/21/2008 +293 days 🔍
04/02/2008 +41 days 🔍
04/02/2008 +0 days 🔍
04/02/2008 +0 days 🔍
04/02/2008 +0 days 🔍
04/02/2008 +0 days 🔍
04/03/2008 +1 days 🔍
04/06/2008 +3 days 🔍
07/12/2013 +1923 days 🔍
03/16/2015 +612 days 🔍
06/01/2025 +3730 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: Bug 435773
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-0887 (🔍)
GCVE (CVE): GCVE-0-2008-0887
GCVE (VulDB): GCVE-100-41849

OVAL: 🔍

X-Force: 41628
SecurityFocus: 28575 - Gnome Desktop Screensaver NIS Authentication Local Unauthorized Access Vulnerability
Secunia: 25065
OSVDB: 35531 - XScreenSaver getpwuid() Failed Network Authentication Screen Lock Bypass
SecurityTracker: 1019749
Vulnerability Center: 18085 - Gnome Desktop ScreenSaver Local DoS Allows to Bypass Authentication, Medium

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 06/01/2025 13:49
Changes: 03/16/2015 17:00 (80), 08/08/2019 07:25 (8), 06/01/2025 13:49 (20)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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