openEuler update for binutils



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-45078
CVE-2018-12699
CWE-ID CWE-787
CWE-122
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
 openEuler
Operating systems & Components / Operating system

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

binutils-help
Operating systems & Components / Operating system package or component

binutils-debugsource
Operating systems & Components / Operating system package or component

binutils-devel
Operating systems & Components / Operating system package or component

binutils
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU59293

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-45078

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary error in stab_xcoff_builtin_type() function in stabs.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Note, the vulnerability exists due to incorrect patch for #VU13471 (CVE-2018-12699).

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

binutils-debuginfo: before 2.34-18

binutils-help: before 2.34-18

binutils-debugsource: before 2.34-18

binutils-devel: before 2.34-18

binutils: before 2.34-18

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1479


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) Heap-based buffer overflow

EUVDB-ID: #VU13471

Risk: Low

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-12699

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

Exploit availability: No

Description

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

The vulnerability exists due to heap-based buffer overflow in the finish_stab function, as defined in the stabs.c source code file. A local attacker can execute the objdump command, trigger memory corruption and cause the service to crash.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

binutils-debuginfo: before 2.34-18

binutils-help: before 2.34-18

binutils-debugsource: before 2.34-18

binutils-devel: before 2.34-18

binutils: before 2.34-18

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1479


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.



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