CVE-2018-6758 : The uwsgi_expand_path function in core/utils.c in Unbit uWSGI through 2.0.15 has

The uwsgi_expand_path function in core/utils.c in Unbit uWSGI through 2.0.15 has a stack-based buffer overflow via a large directory length.

Published 2018-02-06 18:29:00

Updated 2020-08-24 17:37:01

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2018-6758

Unbit » Uwsgi
Versions up to, including, (<=) 2.0.15
cpe:2.3:a:unbit:uwsgi:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.58%

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:3.0/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/unbit/uwsgi/commit/cb4636f7c0af2e97a4eef7a3cdcbd85a71247bfe

improve uwsgi_expand_path() to sanitize input, avoiding stack corrupt… · unbit/uwsgi@cb4636f · GitHub
Patch;Vendor Advisory
http://lists.unbit.it/pipermail/uwsgi/2018-February/008835.html

[uWSGI] [SECURITY] patch for potential stack bypassing
Issue Tracking;Patch
https://lists.debian.org/debian-lts-announce/2018/02/msg00010.html

[SECURITY] [DLA 1275-1] uwsgi security update
Third Party Advisory

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