CVE-2023-39198

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2024:2394
https://access.redhat.com/errata/RHSA-2024:2950
https://access.redhat.com/errata/RHSA-2024:3138
https://access.redhat.com/security/cve/CVE-2023-39198	Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218332	Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc6::::::

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

History

No history.

Information

Published : 2023-11-09 20:15

Updated : 2024-06-25 21:15

NVD link : CVE-2023-39198

Mitre link : CVE-2023-39198

CVE.ORG link : CVE-2023-39198

JSON object : View

Products Affected

redhat

enterprise_linux

fedoraproject

fedora

linux

linux_kernel

CWE

CWE-416

Use After Free

{"id": "CVE-2023-39198", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.5}, {"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 0.8}]}, "published": "2023-11-09T20:15:08.730", "references": [{"url": "https://access.redhat.com/errata/RHSA-2024:2394", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2024:2950", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2024:3138", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2023-39198", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2218332", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html", "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation."}, {"lang": "es", "value": "Se encontr\u00f3 una condici\u00f3n de ejecuci\u00f3n en el controlador QXL del kernel de Linux. La funci\u00f3n qxl_mode_dumb_create() desreferencia el qobj devuelto por qxl_gem_object_create_with_handle(), pero el identificador es el \u00fanico que contiene una referencia a \u00e9l. Esta falla permite a un atacante adivinar el valor de identificador devuelto y desencadenar un problema de use-after-free, lo que podr\u00eda provocar una denegaci\u00f3n de servicio o una escalada de privilegios."}], "lastModified": "2024-06-25T21:15:51.053", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "98C491C7-598A-4D36-BA4F-3505A5727ED1", "versionEndExcluding": "6.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F5608371-157A-4318-8A2E-4104C3467EA1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2226A776-DF8C-49E0-A030-0A7853BB018A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6F15C659-DF06-455A-9765-0E6DE920F29A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B1C14ED-ABC4-41D3-8D9C-D38C6A65B4DE"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC559B26-5DFC-4B7A-A27C-B77DE755DFF9"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}