OpenSUSE Linux update for ovmf



Risk Low
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2017-5731
CVE-2017-5732
CVE-2017-5733
CVE-2017-5734
CVE-2017-5735
CVE-2018-3613
CWE-ID CWE-20
CWE-122
CWE-121
CWE-840
Exploitation vector Local
Public exploit N/A
Vulnerable software
Opensuse
Operating systems & Components / Operating system

Vendor SUSE

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Privilege escalation

EUVDB-ID: #VU16719

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-5731

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to an error when handling malicious input. A local attacker can supply specially crafted files in TianoCompress.c and gain elevated privileges.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 42.3

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-12/msg00059.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Privilege escalation

EUVDB-ID: #VU16720

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-5732

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to an error when handling malicious input. A local attacker can supply specially crafted files in BaseUefiDecompressLib.c and gain elevated privileges.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 42.3

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-12/msg00059.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

3) Heap-based buffer overflow

EUVDB-ID: #VU16721

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-5733

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to boundary error when handling malicious input. A local attacker can supply specially crafted files in MakeTable() function, trigger heap-based buffer overflow and gain elevated privileges.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 42.3

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-12/msg00059.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

4) Stack-based buffer overflow

EUVDB-ID: #VU16722

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-5734

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to boundary error when handling malicious input. A local attacker can supply specially crafted files in MakeTable() function, trigger stack-based buffer overflow and gain elevated privileges.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 42.3

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-12/msg00059.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

5) Heap-based buffer overflow

EUVDB-ID: #VU16723

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-5735

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to boundary error when handling malicious input. A local attacker can supply specially crafted files in Decode() function, trigger heap-based buffer overflow and gain elevated privileges.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 42.3

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-12/msg00059.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

6) Authentication bypass

EUVDB-ID: #VU16724

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-3613

CWE-ID: CWE-840 - Business Logic Errors (3.0)

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to logic error in MdeModulePkg. A local attacker can bypass configuration access controls and gain elevated privileges.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 42.3

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-12/msg00059.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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