CVE-2022-41218

In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release.

CVSS v3.0 5.5 MEDIUM

5.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c	Vendor Advisory
https://lore.kernel.org/all/20220908132754.30532-1-tiwai@suse.de/	Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/09/23/4	Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/09/24/1	Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/09/24/2	Mailing List Third Party Advisory
https://www.debian.org/security/2023/dsa-5324	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Information

Published : 2022-09-21 00:15

Updated : 2023-03-02 17:15

NVD link : CVE-2022-41218

Mitre link : CVE-2022-41218

JSON object : View

CWE

CWE-416

Use After Free

Advertisement

Products Affected

debian

debian_linux

linux

linux_kernel

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c", "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c", "tags": ["Vendor Advisory"], "refsource": "MISC"}, {"url": "https://lore.kernel.org/all/20220908132754.30532-1-tiwai@suse.de/", "name": "https://lore.kernel.org/all/20220908132754.30532-1-tiwai@suse.de/", "tags": ["Patch", "Vendor Advisory"], "refsource": "MISC"}, {"url": "http://www.openwall.com/lists/oss-security/2022/09/23/4", "name": "[oss-security] 20220923 CVE-2022-41218: Linux dvb-core: UAF in dvb-core/dmxdev", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2022/09/24/1", "name": "[oss-security] 20220923 [Report v2] CVE-2022-41218: Linux dvb-core: UAF in dvb-core/dmxdev", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2022/09/24/2", "name": "[oss-security] 20220923 Re: [Report v2] CVE-2022-41218: Linux dvb-core: UAF in dvb-core/dmxdev", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://www.debian.org/security/2023/dsa-5324", "name": "DSA-5324", "tags": ["Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html", "name": "[debian-lts-announce] 20230302 [SECURITY] [DLA 3349-1] linux-5.10 security update", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-416"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-41218", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}}, "publishedDate": "2022-09-21T07:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "5.19.10"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-03-03T01:15Z"}