CVE-2022-40468 : Potential leak of left-over heap data if custom error page templates containing special non-standard variables are used.

Potential leak of left-over heap data if custom error page templates containing special non-standard variables are used. Tinyproxy commit 84f203f and earlier use uninitialized buffers in process_request() function.

Published 2022-09-19 17:15:15

Updated 2023-05-21 22:15:14

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-40468

EPSS FAQ

0.21%

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

~ 59 %

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

CVSS scores for CVE-2022-40468

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2022-40468

CWE-1188 Initialization of a Resource with an Insecure Default

The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-40468

https://github.com/tinyproxy/tinyproxy/issues/457

Potential runtime system sensitive information disclosure through special HTTP requests. · Issue #457 · tinyproxy/tinyproxy · GitHub
Exploit;Third Party Advisory
https://github.com/tinyproxy/tinyproxy/blob/84f203fb1c4733608c7283bbe794005a469c4b00/src/reqs.c#L346

tinyproxy/reqs.c at 84f203fb1c4733608c7283bbe794005a469c4b00 · tinyproxy/tinyproxy · GitHub
Exploit;Third Party Advisory
https://github.com/tinyproxy/tinyproxy/issues/457#issuecomment-1264176815

Potential runtime system sensitive information disclosure through special HTTP requests. · Issue #457 · tinyproxy/tinyproxy · GitHub
https://github.com/tinyproxy/tinyproxy

GitHub - tinyproxy/tinyproxy: tinyproxy - a light-weight HTTP/HTTPS proxy daemon for POSIX operating systems
Third Party Advisory
https://security.gentoo.org/glsa/202305-27

Tinyproxy: Memory Disclosure (GLSA 202305-27) — Gentoo security

Products affected by CVE-2022-40468

Tinyproxy Project » Tinyproxy
Versions up to, including, (<=) 1.11.1
cpe:2.3:a:tinyproxy_project:tinyproxy:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2022-40468

Exploit prediction scoring system (EPSS) score for CVE-2022-40468

CVSS scores for CVE-2022-40468

CWE ids for CVE-2022-40468

References for CVE-2022-40468

Products affected by CVE-2022-40468