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Ubuntu.comUB:CVE-2019-9720

HistorySep 19, 2019 - 12:00 a.m.

CVE-2019-9720

2019-09-1900:00:00

ubuntu.com

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

0.001 Low

EPSS

Percentile

46.7%

JSON

A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows
attackers to corrupt the stack via a crafted video file in Matroska format,
because srt_to_ass in libavcodec/srtdec.c misuses snprintf.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchgst-libav1.0< anyUNKNOWN
ubuntu20.04noarchgst-libav1.0< anyUNKNOWN
ubuntu22.04noarchgst-libav1.0< anyUNKNOWN
ubuntu23.10noarchgst-libav1.0< anyUNKNOWN
ubuntu16.04noarchgst-libav1.0< anyUNKNOWN
ubuntu18.04noarchqtwebengine-opensource-src< anyUNKNOWN
ubuntu20.04noarchqtwebengine-opensource-src< anyUNKNOWN
ubuntu22.04noarchqtwebengine-opensource-src< anyUNKNOWN
ubuntu23.10noarchqtwebengine-opensource-src< anyUNKNOWN
ubuntu18.04noarchvice< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	20.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	22.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	23.10	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	16.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	18.04	noarch	qtwebengine-opensource-src	< any	UNKNOWN
ubuntu	20.04	noarch	qtwebengine-opensource-src	< any	UNKNOWN
ubuntu	22.04	noarch	qtwebengine-opensource-src	< any	UNKNOWN
ubuntu	23.10	noarch	qtwebengine-opensource-src	< any	UNKNOWN
ubuntu	18.04	noarch	vice	< any	UNKNOWN

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References

github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L161

launchpad.net/bugs/cve/CVE-2019-9720

lgtm.com/security/

nvd.nist.gov/vuln/detail/CVE-2019-9720

security-tracker.debian.org/tracker/CVE-2019-9720

www.cve.org/CVERecord?id=CVE-2019-9720

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

0.001 Low

EPSS

Percentile

46.7%

JSON

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