Out-of-bounds write in musl libc - CVE-2019-14697

Vulnerability details

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.

Affected software

How to mitigate CVE-2019-14697

External References

• http://www.openwall.com/lists/oss-security/2019/08/06/4
• https://security.gentoo.org/glsa/202003-13
• https://www.openwall.com/lists/musl/2019/08/06/1

Related Security Bulletins

• Buffer overflow in musl libc library
• Gentoo update for musl
• Out-of-bounds write in musl (Alpine package)
• Ubuntu update for musl