CVE-2022-35260
MEDIUM severity · CVSS 6.5 · Out-of-bounds read
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://hackerone.com/reports/1721098 ↗
Additional information
- NVD record
- https://hackerone.com/reports/1721098Patch
- http://seclists.org/fulldisclosure/2023/Jan/19Advisory
- http://seclists.org/fulldisclosure/2023/Jan/20Advisory
- https://security.gentoo.org/glsa/202212-01Advisory
- https://security.netapp.com/advisory/ntap-20230110-0006/Advisory
- https://support.apple.com/kb/HT213604Advisory
- https://support.apple.com/kb/HT213605Advisory