#VU68747 Stack-based buffer overflow in cURL - CVE-2022-35260

Vulnerability identifier: #VU68747

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-35260

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
cURL
Client/Desktop applications / Other client software

Vendor: curl.haxx.se

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error when parsing .netrc file. A local user can pass a specially crafted file to the curl, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

cURL: 7.84.0 - 7.85.0

---

External links
https://curl.haxx.se/docs/CVE-2022-35260.html

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.