Medium severity · published Dec 29, 2019
CVE-2019-20056
stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has an assertion failure in stbi__shiftsigned
6.5
CVSS
0.9%
EPSS
No
On KEV
Description
stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has an assertion failure in stbi__shiftsigned.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
Stb Image.h · Nothings
2.23 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20056
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20056
Exploit
https://github.com/saitoha/libsixel/issues/126
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