Fedora EPEL 8 update for openssl3

1) Inadequate Encryption Strength

EUVDB-ID: #VU68116

Risk: Medium

CVSSv4.0: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2022-3358

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to decrypt traffic.

The vulnerability exists due to an error in openssl implementation when handling legacy custom ciphers with NID_undef passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and EVP_CipherInit_ex2() functions. Under certain conditions openssl can fail to select a proper cipher and use NULL instead, which corresponds to sending data in plain text.

Note, applications are only affected by this issue if they call EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an encryption/decryption initialisation function.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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. However, a fully functional exploit for this vulnerability is available.

2) Out-of-bounds read

EUVDB-ID: #VU71994

Risk: Medium

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

CVE-ID: CVE-2022-4203

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition when performing name constraint checking of the X.509 certificates. A remote attacker can pass a specially crafted X.509 certificate to the affected server, trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU71993

Risk: Medium

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

CVE-ID: CVE-2022-4304

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain sensitive information.

The vulnerability exists due to a timing based side channel exists in the OpenSSL RSA Decryption implementation. A remote attacker can perform a Bleichenbacher style attack and decrypt data sent over the network.

To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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) Double Free

EUVDB-ID: #VU71996

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-2022-4450

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the PEM_read_bio_ex() function. A remote attacker can pass specially crafted PEM file to the application, trigger a double free error and perform a denial of service (DoS) attack.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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) Use-after-free

EUVDB-ID: #VU71995

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-2023-0215

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the BIO_new_NDEF function. A remote attacker can trigger a use-after-free error and perform a denial of service (DoS) attack.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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) Release of invalid pointer or reference

EUVDB-ID: #VU71997

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-2023-0216

CWE-ID: CWE-763 - Release of invalid pointer or reference

Exploit availability: No

Description

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

The vulnerability exists due to invalid pointer dereference in d2i_PKCS7 functions. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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.

7) NULL pointer dereference

EUVDB-ID: #VU71998

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-2023-0217

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error when validating the DSA public key. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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.

8) Type Confusion

EUVDB-ID: #VU71992

Risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-0286

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion error related to X.400 address processing inside an X.509 GeneralName. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and perform a denial of service (DoS) attack or read memory contents.

In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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.

9) NULL pointer dereference

EUVDB-ID: #VU71999

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-2023-0401

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error during PKCS7 data verification. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Upgrade openssl3 to version 3.0.7-5.el8.1.

Vulnerable software versions

Fedora: 8

openssl3: before 3.0.7-5.el8.1

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:openssl3:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-7407b60f95

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.