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Redhat.comRH:CVE-2018-18438

HistoryOct 17, 2018 - 7:50 a.m.

CVE-2018-18438

2018-10-1707:50:22

redhat.com

access.redhat.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.7%

JSON

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.

References

bugzilla.redhat.com/show_bug.cgi?id=1609015

www.cve.org/CVERecord?id=CVE-2018-18438 https://nvd.nist.gov/vuln/detail/CVE-2018-18438 https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.html

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.7%

JSON

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