Ubuntu update for binutils



Risk High
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2017-9742
CVE-2017-9747
CVE-2017-9748
CVE-2017-9750
CVE-2017-9756
CVE-2018-6323
CWE-ID CWE-119
CWE-20
CWE-190
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #4 is available.
Public exploit code for vulnerability #5 is available.
Public exploit code for vulnerability #6 is available.
Vulnerable software
Ubuntu
Operating systems & Components / Operating system

binutils (Ubuntu package)
Operating systems & Components / Operating system package or component

binutils-multiarch (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU38834

Risk: High

CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-9742

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The score_opcodes function in opcodes/score7-dis.c in GNU Binutils 2.28 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by mishandling of this file during "objdump -D" execution.

Mitigation

Update the affected package binutils to the latest version.

Vulnerable software versions

Ubuntu: 14.04

binutils (Ubuntu package): before Ubuntu Pro (Infra-only)

binutils-multiarch (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4336-3


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, proof of concept for this vulnerability is available.

2) Input validation error

EUVDB-ID: #VU38839

Risk: Medium

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2017-9747

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by mishandling of this file during "objdump -D" execution.

Mitigation

Update the affected package binutils to the latest version.

Vulnerable software versions

Ubuntu: 14.04

binutils (Ubuntu package): before Ubuntu Pro (Infra-only)

binutils-multiarch (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4336-3


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. However, proof of concept for this vulnerability is available.

3) Input validation error

EUVDB-ID: #VU38840

Risk: Medium

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2017-9748

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by mishandling of this file during "objdump -D" execution.

Mitigation

Update the affected package binutils to the latest version.

Vulnerable software versions

Ubuntu: 14.04

binutils (Ubuntu package): before Ubuntu Pro (Infra-only)

binutils-multiarch (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4336-3


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. However, proof of concept for this vulnerability is available.

4) Buffer overflow

EUVDB-ID: #VU38842

Risk: High

CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-9750

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

opcodes/rx-decode.opc in GNU Binutils 2.28 lacks bounds checks for certain scale arrays, which allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by mishandling of this file during "objdump -D" execution.

Mitigation

Update the affected package binutils to the latest version.

Vulnerable software versions

Ubuntu: 14.04

binutils (Ubuntu package): before Ubuntu Pro (Infra-only)

binutils-multiarch (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4336-3


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, proof of concept for this vulnerability is available.

5) Buffer overflow

EUVDB-ID: #VU38848

Risk: High

CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-9756

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The aarch64_ext_ldst_reglist function in opcodes/aarch64-dis.c in GNU Binutils 2.28 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by mishandling of this file during "objdump -D" execution.

Mitigation

Update the affected package binutils to the latest version.

Vulnerable software versions

Ubuntu: 14.04

binutils (Ubuntu package): before Ubuntu Pro (Infra-only)

binutils-multiarch (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4336-3


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, proof of concept for this vulnerability is available.

6) Integer overflow

EUVDB-ID: #VU10319

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-6323

CWE-ID: CWE-190 - Integer overflow

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the elf_object_p function of the elfcode.h source code in the GNU Binutils binary file descriptor library due to integer overflow condition. A remote attacker can submit a specially crafted ELF file, trigger memory corruption and cause the service to crash.

Mitigation

Update the affected package binutils to the latest version.

Vulnerable software versions

Ubuntu: 14.04

binutils (Ubuntu package): before Ubuntu Pro (Infra-only)

binutils-multiarch (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4336-3


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, proof of concept for this vulnerability is available.



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