Vulnerability identifier: #VU27334
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-787
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
musl libc
Universal components / Libraries /
Libraries used by multiple products
Vendor: GNU
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to x87 floating-point stack adjustment imbalance, related to the math/i386/ directory. A remote attacker can pass specially crafted data to the application, trigger out-of-bounds write and execute arbitrary code on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
musl libc: 0.5.0 - 1.1.23
External links
http://www.openwall.com/lists/oss-security/2019/08/06/4
http://security.gentoo.org/glsa/202003-13
http://www.openwall.com/lists/musl/2019/08/06/1
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.