CVE-2019-19319

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.4 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.6 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319	Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://www.debian.org/security/2020/dsa-4698
https://usn.ubuntu.com/4391-1/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30
https://bugzilla.suse.com/show_bug.cgi?id=1158021

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*

Information

Published : 2019-11-27 15:15

Updated : 2021-02-09 11:15

NVD link : CVE-2019-19319

Mitre link : CVE-2019-19319

JSON object : View

CWE

CWE-416

Use After Free

CWE-787

Out-of-bounds Write

Advertisement

Products Affected

redhat

enterprise_linux

linux

linux_kernel

opensuse

leap

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319", "name": "https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://security.netapp.com/advisory/ntap-20200103-0001/", "name": "https://security.netapp.com/advisory/ntap-20200103-0001/", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html", "name": "openSUSE-SU-2020:0336", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html", "name": "[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update", "tags": [], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html", "name": "[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update", "tags": [], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html", "name": "[debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security update", "tags": [], "refsource": "MLIST"}, {"url": "https://www.debian.org/security/2020/dsa-4698", "name": "DSA-4698", "tags": [], "refsource": "DEBIAN"}, {"url": "https://usn.ubuntu.com/4391-1/", "name": "USN-4391-1", "tags": [], "refsource": "UBUNTU"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30", "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30", "tags": [], "refsource": "CONFIRM"}, {"url": "https://bugzilla.suse.com/show_bug.cgi?id=1158021", "name": "https://bugzilla.suse.com/show_bug.cgi?id=1158021", "tags": [], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}, {"lang": "en", "value": "CWE-416"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-19319", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.4, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.6}}, "publishedDate": "2019-11-27T23:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-02-09T19:15Z"}