openEuler update for curl



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-32001
CWE-ID CWE-367
Exploitation vector Local
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

curl-help
Operating systems & Components / Operating system package or component

curl-debuginfo
Operating systems & Components / Operating system package or component

libcurl
Operating systems & Components / Operating system package or component

curl-debugsource
Operating systems & Components / Operating system package or component

libcurl-devel
Operating systems & Components / Operating system package or component

curl
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU78540

Risk: Low

CVSSv4.0: 0.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-32001

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

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

The vulnerability exists due to a race condition when calling fopen() on STS and/or alt-svc data to files. A local user can create or rename directory entries in the directory the victim saves their files and abuse the symbolic link behavior to overwrite arbitrary files on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

curl-help: before 7.71.1-30

curl-debuginfo: before 7.71.1-30

libcurl: before 7.71.1-30

curl-debugsource: before 7.71.1-30

libcurl-devel: before 7.71.1-30

curl: before 7.71.1-30

CPE2.3 External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1443


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.



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