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alpinelinuxAlpine Linux Development TeamALPINE:CVE-2022-35260
HistoryDec 05, 2022 - 10:15 p.m.

CVE-2022-35260

2022-12-0522:15:10
Alpine Linux Development Team
security.alpinelinux.org
38
cve-2022-35260
buffer overflow
curl
.netrc file
credentials
denial-of-service
unix

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

8 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.1%

curl can be told to parse a .netrc file for credentials. If that file endsin a line with 4095 consecutive non-white space letters and no newline, curlwould first read past the end of the stack-based buffer, and if the readworks, write a zero byte beyond its boundary.This will in most cases cause a segfault or similar, but circumstances might also cause different outcomes.If a malicious user can provide a custom netrc file to an application or otherwise affect its contents, this flaw could be used as denial-of-service.

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

8 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.1%