SUSE update for compat-openssl098



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-23840
CVE-2021-23841
CWE-ID CWE-20
CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 SUSE Linux Enterprise Module for Legacy Software
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

libopenssl0_9_8-debuginfo-32bit
Operating systems & Components / Operating system package or component

libopenssl0_9_8-32bit
Operating systems & Components / Operating system package or component

libopenssl0_9_8-debuginfo
Operating systems & Components / Operating system package or component

libopenssl0_9_8
Operating systems & Components / Operating system package or component

compat-openssl098-debugsource
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU50745

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-2021-23840

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input during EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate calls. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package compat-openssl098 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Legacy Software: 12

SUSE Linux Enterprise Server for SAP: 12-SP2 - 12-SP5

libopenssl0_9_8-debuginfo-32bit: before 0.9.8j-106.24.1

libopenssl0_9_8-32bit: before 0.9.8j-106.24.1

libopenssl0_9_8-debuginfo: before 0.9.8j-106.24.1

libopenssl0_9_8: before 0.9.8j-106.24.1

compat-openssl098-debugsource: before 0.9.8j-106.24.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2021/suse-su-20210793-1/


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: #VU50740

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-23841

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 within the X509_issuer_and_serial_hash() function when parsing the issuer field in the X509 certificate. A remote attacker can supply a specially crafted certificate, trigger a NULL pointer dereference error and perform a denial of service (DoS) attack.

Mitigation

Update the affected package compat-openssl098 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Legacy Software: 12

SUSE Linux Enterprise Server for SAP: 12-SP2 - 12-SP5

libopenssl0_9_8-debuginfo-32bit: before 0.9.8j-106.24.1

libopenssl0_9_8-32bit: before 0.9.8j-106.24.1

libopenssl0_9_8-debuginfo: before 0.9.8j-106.24.1

libopenssl0_9_8: before 0.9.8j-106.24.1

compat-openssl098-debugsource: before 0.9.8j-106.24.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2021/suse-su-20210793-1/


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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