Slackware Linux update for openssl

1) Resource management error

EUVDB-ID: #VU82894

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5678

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources within DH_generate_key() and DH_check_pub_key() functions. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package openssl.

Vulnerable software versions

Slackware Linux: 15.0

openssl-solibs: before 1.1.1za

openssl: before 1.1.1za

CPE2.3

• cpe:2.3:o:slackware:slackware_linux:15.0:*:*:*:*:*:*:

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.462281

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) NULL pointer dereference

EUVDB-ID: #VU85808

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-0727

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 processing fields in the PKCS12 certificate. A remote attacker can pass specially crafted certificate to the server and perform a denial of service (DoS) attack.

Mitigation

Update the affected package openssl.

Vulnerable software versions

Slackware Linux: 15.0

openssl-solibs: before 1.1.1za

openssl: before 1.1.1za

CPE2.3

• cpe:2.3:o:slackware:slackware_linux:15.0:*:*:*:*:*:*:

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.462281

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) Resource exhaustion

EUVDB-ID: #VU88211

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-2511

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to unbounded memory growth when processing TLSv1.3 sessions. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that the non-default SSL_OP_NO_TICKET option is being used in TLSv1.3.

Mitigation

Update the affected package openssl.

Vulnerable software versions

Slackware Linux: 15.0

openssl-solibs: before 1.1.1za

openssl: before 1.1.1za

CPE2.3

• cpe:2.3:o:slackware:slackware_linux:15.0:*:*:*:*:*:*:

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.462281

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) Use-after-free

EUVDB-ID: #VU89861

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-4741

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 SSL_free_buffers() function. A remote attacker can trigger a use-after-free error and perform a denial of service (DoS) attack.

Note, the vulnerability affects only applications that call the vulnerable function.

Mitigation

Update the affected package openssl.

Vulnerable software versions

Slackware Linux: 15.0

openssl-solibs: before 1.1.1za

openssl: before 1.1.1za

CPE2.3

• cpe:2.3:o:slackware:slackware_linux:15.0:*:*:*:*:*:*:

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.462281

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) Out-of-bounds read

EUVDB-ID: #VU93424

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-5535

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

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 condition within the SSL_select_next_proto() function when using NPN. A remote attacker can send specially crafted data to the application, trigger an out-of-bounds read and perform a denial of service (DoS) attack.

Mitigation

Update the affected package openssl.

Vulnerable software versions

Slackware Linux: 15.0

openssl-solibs: before 1.1.1za

openssl: before 1.1.1za

CPE2.3

• cpe:2.3:o:slackware:slackware_linux:15.0:*:*:*:*:*:*:

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.462281

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.