CVE-2011-4029

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file.

CVSS v2.0 1.9 LOW

1.9^/10

CVSS v2.0 : LOW

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

Exploitability : 3.4 / Impact : 2.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4	Patch
http://lists.freedesktop.org/archives/xorg/2011-October/053680.html
http://secunia.com/advisories/46460	Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2012-0939.html
http://secunia.com/advisories/49579	Vendor Advisory

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:x.org:x_server::::::::
	cpe:2.3:a:x.org:x_server:1.11.0:::::::*

Information

Published : 2012-07-03 12:55

Updated : 2020-08-24 10:14

NVD link : CVE-2011-4029

Mitre link : CVE-2011-4029

JSON object : View

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Advertisement

Products Affected

x.org

x_server

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4", "name": "http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4", "tags": ["Patch"], "refsource": "CONFIRM"}, {"url": "http://lists.freedesktop.org/archives/xorg/2011-October/053680.html", "name": "[xorg] 20111018 X.Org security advisory: xserver locking code issues", "tags": [], "refsource": "MLIST"}, {"url": "http://secunia.com/advisories/46460", "name": "46460", "tags": ["Vendor Advisory"], "refsource": "SECUNIA"}, {"url": "http://rhn.redhat.com/errata/RHSA-2012-0939.html", "name": "RHSA-2012:0939", "tags": [], "refsource": "REDHAT"}, {"url": "http://secunia.com/advisories/49579", "name": "49579", "tags": ["Vendor Advisory"], "refsource": "SECUNIA"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-362"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2011-4029", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 1.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "LOW", "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}}, "publishedDate": "2012-07-03T19:55Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.11.1"}, {"cpe23Uri": "cpe:2.3:a:x.org:x_server:1.11.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-08-24T17:14Z"}