cbcvebase.
CVE-2020-21049
published 2021-09-14

CVE-2020-21049: An invalid read in the stb_image.h component of libsixel prior to v1.8.5 allows attackers to cause a denial of service (DOS) via a crafted PSD file.

PriorityP424medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
1.38%
69.3th percentile
An invalid read in the stb_image.h component of libsixel prior to v1.8.5 allows attackers to cause a denial of service (DOS) via a crafted PSD file.

Affected

6 ranges
VendorProductVersion rangeFixed in
debianlibsixel< libsixel 1.8.6-1 (bookworm)libsixel 1.8.6-1 (bookworm)
libsixel_projectlibsixel>= 0 < 1.8.6-11.8.6-1
libsixel_projectlibsixel>= 0 < 1.8.6-11.8.6-1
libsixel_projectlibsixel>= 0 < 1.8.6-11.8.6-1
libsixel_projectlibsixel>= 0 < 1.8.6-11.8.6-1
saitohalibsixel< 1.8.51.8.5

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.