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Vulnerability details: VCID-74ct-7v5h-aaae
Vulnerability ID VCID-74ct-7v5h-aaae
Aliases CVE-2019-18281
Summary An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an application via a text file containing many directional characters.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-18281.html
rhas Moderate https://access.redhat.com/errata/RHSA-2020:1665
cvssv3 4.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-18281.json
epss 0.00590 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
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epss 0.01276 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
epss 0.01276 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
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epss 0.01371 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
epss 0.01371 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
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epss 0.01749 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
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epss 0.01749 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
epss 0.01749 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
epss 0.01749 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
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epss 0.01749 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
epss 0.0189 https://api.first.org/data/v1/epss?cve=CVE-2019-18281
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1764742
generic_textual Medium https://codereview.qt-project.org/c/qt/qtbase/+/271889
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18281
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2019-18281
cvssv3 4.3 https://nvd.nist.gov/vuln/detail/CVE-2019-18281
cvssv3.1 4.3 https://nvd.nist.gov/vuln/detail/CVE-2019-18281
generic_textual Medium https://usn.ubuntu.com/usn/usn-4275-1
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-18281.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-18281.json
https://api.first.org/data/v1/epss?cve=CVE-2019-18281
https://bugreports.qt.io/browse/QTBUG-77819
https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784
https://codereview.qt-project.org/c/qt/qtbase/+/271889
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18281
https://seclists.org/bugtraq/2019/Nov/4
https://security.gentoo.org/glsa/202003-60
https://usn.ubuntu.com/4275-1/
https://usn.ubuntu.com/usn/usn-4275-1
https://www.debian.org/security/2019/dsa-4556
1764742 https://bugzilla.redhat.com/show_bug.cgi?id=1764742
cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CVE-2019-18281 https://nvd.nist.gov/vuln/detail/CVE-2019-18281
RHSA-2020:1665 https://access.redhat.com/errata/RHSA-2020:1665
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-18281.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-18281
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2019-18281
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2019-18281
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.78107
EPSS Score 0.00590
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.