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Tenable Nessus
Tenable Nessus
•added 2025/09/10 12:00 a.m.•6 views

Linux Distros Unpatched Vulnerability : CVE-2020-36120

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Buffer Overflow in the sixelencoderencodebytes function of Libsixel v1.8.6 allows attackers to cause a Denial of Service DoS. CVE-2020-36120 Note that Nessus...

7.5CVSS7.2AI score0.01241EPSS
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Tenable Nessus
Tenable Nessus
•added 2025/08/30 12:00 a.m.•4 views

Linux Distros Unpatched Vulnerability : CVE-2020-21677

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A heap-based buffer overflow in the sixelencoderoutputwithoutmacro function in encoder.c of Libsixel 1.8.4 allows attackers to cause a denial of service DOS via...

6.5CVSS6.8AI score0.00904EPSS
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attackerkb
attackerkb
•added 2022/05/11 2:15 p.m.•5 views

CVE-2022-29978

There is a floating point exception error in sixelencoderdoresize, encoder.c:633 in libsixel img2sixel 1.8.6. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted JPEG file...

6.5CVSS6.6AI score0.01037EPSS
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osv_debian
osv_debian
•added 2022/05/11 2:15 p.m.•14 views

DEBIAN-CVE-2022-29978

There is a floating point exception error in sixelencoderdoresize, encoder.c:633 in libsixel img2sixel 1.8.6. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted JPEG file...

6.5CVSS6.3AI score0.01037EPSS
SaveExploits1References1
CNNVD
CNNVD
•added 2022/05/11 12:00 a.m.•17 views

Libsixel security vulnerabilities

libsixel is a package that provides encoding/decoding implementations for DEC SIXEL graphics and other converter programs. libsixel img2sixel version 1.8.6 suffers from a denial of service vulnerability stemming from a floating-point exception error in ssixelencoderdoresize, encoder.c:633. A remo...

6.5CVSS6.5AI score0.01037EPSS
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Positive Technologies
Positive Technologies
•added 2022/05/11 12:00 a.m.•6 views

PT-2022-19940

Name of the Vulnerable Software and Affected Versions libsixel img2sixel version 1.8.6 Description The issue is related to a floating point exception error in the sixel encoder do resize function, located in encoder.c:633 of libsixel img2sixel. This error can be triggered by remote attackers usin...

6.5CVSS0.01037EPSS
SaveExploits1References11
BDU FSTEC
BDU FSTEC
•added 2022/04/11 12:00 a.m.•21 views

SIXEL Libsixel Encoder Buffer Overflow DoS

The vulnerability of the sixelencoderoutputwithoutmacro function in the encoder.c component of the SIXEL Libsixel encoder/decoder implementation is related to writing beyond the buffer boundaries. Exploiting this vulnerability allows an attacker to cause a service failure by converting a speciall...

7.1CVSS6.8AI score0.00904EPSS
SaveExploits1References5Affected Software2
osv_ubuntu
osv_ubuntu
•added 2022/02/19 7:15 p.m.•25 views

UBUNTU-CVE-2021-46700

In libsixel 1.8.6, sixelencoderoutputwithoutmacro called from sixelencoderencodeframe in encoder.c has a double free...

6.5CVSS5.8AI score0.00955EPSS
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Positive Technologies
Positive Technologies
•added 2022/02/19 12:00 a.m.•6 views

PT-2022-12903

Name of the Vulnerable Software and Affected Versions libsixel version 1.8.6 Description The issue is related to a double free error in the sixel encoder output without macro function, which is called from sixel encoder encode frame in encoder.c. Recommendations For libsixel version 1.8.6, at the...

6.5CVSS0.00955EPSS
SaveExploits1References8
osv_debian
osv_debian
•added 2021/08/10 9:15 p.m.•12 views

DEBIAN-CVE-2020-21677

A heap-based buffer overflow in the sixelencoderoutputwithoutmacro function in encoder.c of Libsixel 1.8.4 allows attackers to cause a denial of service DOS via converting a crafted PNG file into Sixel format...

6.5CVSS6.7AI score0.00904EPSS
SaveExploits1References1
osv_ubuntu
osv_ubuntu
•added 2021/08/10 9:15 p.m.•13 views

UBUNTU-CVE-2020-21677

A heap-based buffer overflow in the sixelencoderoutputwithoutmacro function in encoder.c of Libsixel 1.8.4 allows attackers to cause a denial of service DOS via converting a crafted PNG file into Sixel format...

6.5CVSS6.1AI score0.00904EPSS
SaveExploits1References3
Debian CVE
Debian CVE
•added 2021/08/10 8:19 p.m.•49 views

CVE-2020-21677

A heap-based buffer overflow in the sixelencoderoutputwithoutmacro function in encoder.c of Libsixel 1.8.4 allows attackers to cause a denial of service DOS via converting a crafted PNG file into Sixel format...

6.5CVSS6.5AI score0.00904EPSS
SaveExploits1
Snyk
Snyk
•added 2021/04/14 2:15 p.m.•2 views

Buffer Overflow

Overview Affected versions of this package are vulnerable to Buffer Overflow. Buffer Overflow in the "sixelencoderencodebytes" function of Libsixel v1.8.6 allows attackers to cause a Denial of Service DoS. Remediation There is no fixed version for libsixel. References - GitHub Issue...

7.5CVSS6.8AI score0.01241EPSS
SaveExploits1References2
osv_ubuntu
osv_ubuntu
•added 2021/04/14 2:15 p.m.•15 views

UBUNTU-CVE-2020-36120

Buffer Overflow in the "sixelencoderencodebytes" function of Libsixel v1.8.6 allows attackers to cause a Denial of Service DoS...

7.5CVSS5.8AI score0.01241EPSS
SaveExploits1References3
attackerkb
attackerkb
•added 2021/04/14 2:15 p.m.•7 views

CVE-2020-36120

Buffer Overflow in the "sixelencoderencodebytes" function of Libsixel v1.8.6 allows attackers to cause a Denial of Service DoS...

7.5CVSS5.4AI score0.01241EPSS
SaveExploits1References2
Positive Technologies
Positive Technologies
•added 2021/04/14 12:00 a.m.•3 views

PT-2021-11917

Name of the Vulnerable Software and Affected Versions: Libsixel version 1.8.6 Description: The issue is related to a Buffer Overflow in the sixel encoder encode bytes function, which can be exploited by attackers to cause a Denial of Service DoS. Recommendations: For Libsixel version 1.8.6,...

7.5CVSS0.01241EPSS
SaveExploits1References7
CNNVD
CNNVD
•added 2021/04/14 12:00 a.m.•20 views

Libsixel buffer error vulnerability

Libsixel is a package that provides encoding/decoding implementations for DEC SIXEL graphics and other converter programs. A buffer overflow vulnerability exists in Libsixel version v1.8.6, which stems from a buffer overflow in the sixelencoderencodebytes function, and can be exploited by an...

7.5CVSS6AI score0.01241EPSS
SaveExploits1References2
Positive Technologies
Positive Technologies
•added 2019/12/24 12:00 a.m.•1 views

PT-2019-6204

Name of the Vulnerable Software and Affected Versions Libsixel version 1.8.4 Description A heap-based buffer overflow in the sixel encoder output without macro function in encoder.c of Libsixel allows attackers to cause a denial of service DOS via converting a crafted PNG file into Sixel format...

7.1CVSS0.00904EPSS
SaveExploits1References11
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