openEuler 22.03 LTS update for curl



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-42915
CVE-2022-32221
CVE-2022-42916
CWE-ID CWE-415
CWE-440
CWE-319
Exploitation vector Network
Public exploit N/A
Vulnerable software
 openEuler
Operating systems & Components / Operating system

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

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

libcurl
Operating systems & Components / Operating system package or component

curl-debuginfo
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 information about 3 vulnerabilities.

1) Double Free

EUVDB-ID: #VU68748

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-42915

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing non-200 proxy HTTP responses for the following schemes: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, telnet. A remote attacker can trigger a double free error by forcing the application into connecting to resources that are not allowed by the configured proxy.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

curl-help: before 7.79.1-12

curl-debugsource: before 7.79.1-12

libcurl: before 7.79.1-12

curl-debuginfo: before 7.79.1-12

libcurl-devel: before 7.79.1-12

curl: before 7.79.1-12

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2041


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Expected behavior violation

EUVDB-ID: #VU68746

Risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-32221

CWE-ID: CWE-440 - Expected Behavior Violation

Exploit availability: No

Description

The vulnerability allows a remote attacker to force unexpected application behavior.

The vulnerability exists due to a logic error for a reused handle when processing subsequent HTTP PUT and POST requests. The libcurl can erroneously use the read callback (CURLOPT_READFUNCTION) to ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously was used to issue a PUT request, which used that callback. As a result, such behavior can influence application flow and force unpredictable outcome.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

curl-help: before 7.79.1-12

curl-debugsource: before 7.79.1-12

libcurl: before 7.79.1-12

curl-debuginfo: before 7.79.1-12

libcurl-devel: before 7.79.1-12

curl: before 7.79.1-12

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2041


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Cleartext transmission of sensitive information

EUVDB-ID: #VU68749

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-42916

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to an error when parsing URL with IDN characters that get replaced to ASCII counterparts as part of the IDN conversion. A remote attacker can bypass curl's HSTS check and trick it into using unencrypted HTTP protocol.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

curl-help: before 7.79.1-12

curl-debugsource: before 7.79.1-12

libcurl: before 7.79.1-12

curl-debuginfo: before 7.79.1-12

libcurl-devel: before 7.79.1-12

curl: before 7.79.1-12

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2041


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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