CVE-2019-19635 : An issue was discovered in libsixel 1.8.2. There is a heap-based buffer overflow

An issue was discovered in libsixel 1.8.2. There is a heap-based buffer overflow in the function sixel_decode_raw_impl at fromsixel.c.

Published 2019-12-08 03:15:11

Updated 2019-12-09 14:15:19

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2019-19635

Libsixel Project » Libsixel » Version: 1.8.2
cpe:2.3:a:libsixel_project:libsixel:1.8.2:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.54%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 66 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

https://github.com/saitoha/libsixel/issues/103

A heap-buffer-overflow in function sixel_decode_raw_impl at fromsixel.c:608-4, due to integer overflow · Issue #103 · saitoha/libsixel · GitHub
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