Two libarchive vulnerabilities in F5 BIG-IP

Published: 2024-09-09

Risk	Low
Patch available	NO
Number of vulnerabilities	2
CVE-ID	CVE-2018-1000877 CVE-2018-1000878
CWE-ID	CWE-415 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	BIG-IP Hardware solutions / Firmware
Vendor	F5 Networks

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Double-free error

EUVDB-ID: #VU16726

Risk: Low

CVSSv3.1: 6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2018-1000877

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition.

The vulnerability exists due to double-free error in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0. A remote attacker can trick the victim into opening a specially crafted RAR archive and cause the service to crash.

Mitigation

Note, the vulnerabilities affect configuration and tmsh utilities.

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

BIG-IP: 15.0.0 - 17.1.1.3

External links

http://my.f5.com/manage/s/article/K000140964

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) Use-after-free error

EUVDB-ID: #VU16727