CVE-2026-40684

A flaw was found in Exim, specifically on systems utilizing musl libc. A remote attacker can exploit this vulnerability by providing malformed DNS data within PTR records. This can lead to the mail transfer agent MTA connection instance crashing, resulting in a Denial of Service DoS for affected...

OESA-2026-2178 musl security update

musl is an implementation of the C standard library built on top of the Linux system call API, including interfaces defined in the base language standard, POSIX, and widely agreed-upon extensions. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards conforman...

CVE-2026-40684

In Exim before 4.99.2, on systems using musl libc not glibc, an attacker can crash the connection instance when malformed DNS data is present in PTR records. This is caused by a dnexpand oddity in octal printing...

PT-2026-36195

Name of the Vulnerable Software and Affected Versions Exim versions prior to 4.99.2 Description On systems using musl libc instead of glibc, an attacker can crash the connection instance by providing malformed DNS data in PTR records. This issue stems from an oddity in octal printing within the d...

CVE-2026-40684

In Exim before 4.99.2, on systems using musl libc not glibc, an attacker can crash the connection instance when malformed DNS data is present in PTR records. This is caused by a dnexpand oddity in octal printing...

The vulnerability of the iconv function in the musl libc library, which allows a hacker to execute arbitrary code.

The vulnerability of the iconv function in the musl libc library is related to writing beyond the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker to execute arbitrary code when calling the function for converting text from EUC-KR to UTF-8...

USN-4768-1: musl vulnerabilities

It was discovered that musl did not properly handle kernel syscalls. An attacker could use this vulnerability to cause a denial of service crash or possibly execute arbitrary code. CVE-2018-1000001 It was discovered that musl did not properly handle the parsing of DNS response codes. A remote...

CVE-2012-2114

Stack-based buffer overflow in fprintf in musl before 0.8.8 and earlier allows context-dependent attackers to cause a denial of service crash or possibly execute arbitrary code via a long string to an unbuffered stream such as stderr...