Gentoo update for curl



Risk Medium
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2023-46218
CVE-2023-46219
CVE-2024-0853
CVE-2024-2004
CVE-2024-2398
CVE-2024-2466
CWE-ID CWE-200
CWE-311
CWE-299
CWE-20
CWE-772
CWE-297
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Gentoo Linux
Operating systems & Components / Operating system

net-misc/curl
Operating systems & Components / Operating system package or component

Vendor Gentoo

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU83900

Risk: Low

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

CVE-ID: CVE-2023-46218

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to an error in curl that allows a malicious HTTP server to set "super cookies" that are then passed back to more origins than what is otherwise allowed or possible. A remote attacker can force curl to send such cookie to different and unrelated sites and domains.

Mitigation

Update the affected packages.
net-misc/curl to version: 8.7.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/curl: before 8.7.1

CPE2.3 External links

https://security.gentoo.org/glsa/202409-20


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) Missing Encryption of Sensitive Data

EUVDB-ID: #VU83899

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-2023-46219

CWE-ID: CWE-311 - Missing Encryption of Sensitive Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error when handling HSTS long file names. When saving HSTS data to an excessively long file name, curl can end up removing all contents from the file, making subsequent requests using that file unaware of the HSTS status they should otherwise use. As a result, a remote attacker can perform MitM attack.

Mitigation

Update the affected packages.
net-misc/curl to version: 8.7.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/curl: before 8.7.1

CPE2.3 External links

https://security.gentoo.org/glsa/202409-20


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) Improper check for certificate revocation

EUVDB-ID: #VU85927

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-0853

CWE-ID: CWE-299 - Improper Check for Certificate Revocation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass OCSP verification.

The vulnerability exists due to curl inadvertently keeps the SSL session ID for connections in its cache even when the verify status (OCSP stapling) test has failed. A subsequent transfer to the same hostname will be successful if the session ID cache is still fresh, which leads to skipping the verify status check. As a result, OCSP verification is always successful for all subsequent TLS sessions.

Mitigation

Update the affected packages.
net-misc/curl to version: 8.7.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/curl: before 8.7.1

CPE2.3 External links

https://security.gentoo.org/glsa/202409-20


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.

4) Input validation error

EUVDB-ID: #VU87846

Risk: Low

CVSSv4.0: 0.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-2004

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to an error when a protocol selection parameter option disables all protocols without adding any. As a result, the default set of protocols would remain in the allowed set due to an error in the logic for removing protocols.

Mitigation

Update the affected packages.
net-misc/curl to version: 8.7.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/curl: before 8.7.1

CPE2.3 External links

https://security.gentoo.org/glsa/202409-20


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.

5) Missing Release of Resource after Effective Lifetime

EUVDB-ID: #VU87850

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-2398

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error when sending HTTP/2 server push responses with an overly large number of headers. A remote attacker can send PUSH_PROMISE frames with an excessive amount of headers to the application, trigger memory leak and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
net-misc/curl to version: 8.7.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/curl: before 8.7.1

CPE2.3 External links

https://security.gentoo.org/glsa/202409-20


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.

6) Improper validation of certificate with host mismatch

EUVDB-ID: #VU87852

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-2024-2466

CWE-ID: CWE-297 - Improper Validation of Certificate with Host Mismatch

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to libcurl does not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. A remote attacker force the application to completely skip the certificate check and perform MitM attack.

Mitigation

Update the affected packages.
net-misc/curl to version: 8.7.1

Vulnerable software versions

Gentoo Linux: All versions

net-misc/curl: before 8.7.1

CPE2.3 External links

https://security.gentoo.org/glsa/202409-20


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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