Multiple vulnerabilities in GNU Binutils



| Updated: 2019-01-10
Risk High
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2018-20623
CVE-2018-20651
CVE-2018-20657
CVE-2018-20671
CVE-2018-20673
CWE-ID CWE-416
CWE-476
CWE-401
CWE-190
CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Binutils
Universal components / Libraries / Libraries used by multiple products

Vendor GNU

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU16781

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20623

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code.

The vulnerability exists due to use-after-free in the error function in elfcomm.c when called from the process_archive function in readelf.c. A remote attacker can supply a specially crafted ELF file, trigger heap-based buffer overflow and cause the service to crash or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Binutils: 2.31.1

CPE2.3 External links

http://sourceware.org/bugzilla/show_bug.cgi?id=24049


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: #VU16809

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20651

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 in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd). A remote attacker can supply a specially crafted ELF file and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Binutils: 2.31.1

CPE2.3 External links

http://www.securityfocus.com/bid/106440
http://sourceware.org/bugzilla/show_bug.cgi?id=24041
http://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f


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) Memory leak

EUVDB-ID: #VU16808

Risk: Low

CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20657

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the demangle_template function in cplus-dem.c in GNU libiberty. A remote attacker can trigger a memory leak via a crafted string and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Binutils: 2.31.1

CPE2.3 External links

http://www.securityfocus.com/bid/106444
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539


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) Heap-based buffer overflow

EUVDB-ID: #VU16828

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20671

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in load_specific_debug_section in objdump.c. A remote attacker can supply a specially crafted section size, trigger heap-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Binutils: 2.20.0 - 2.31.1

CPE2.3 External links

http://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=11fa9f134fd658075c6f74499c780df045d9e9ca
http://sourceware.org/bugzilla/show_bug.cgi?id=24005


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) Integer overflow

EUVDB-ID: #VU16897

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20673

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow (for "Create an array for saving the template argument values") in the demangle_template function in cplus-dem.c in GNU libiberty. A remote attacker can supply a specially crafted ELF file, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Binutils: 2.31.1

CPE2.3 External links

http://sourceware.org/bugzilla/show_bug.cgi?id=24039


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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