CVE-2026-63387

libevent <2.1.13 and

CVE-2026-63387 Libevent: Off-by-one stack buffer overflow in dnsname_to_labels via crafted DNS server response

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsnametolabels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdnsserverrequestformatresponse. The final-label check...

PT-2026-76584

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsname to labels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdns server request format response. The final-label...

MiracleLinux 7 : libevent-2.0.21-4.0.1.el7.AXS7 (AXSA:2025-9720:01)

The remote MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2025-9720:01 advisory. The libevent API provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been...

SUSE CVE-2016-10195

The nameparse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the labellen variable, which triggers an out-of-bounds stack read...

SUSE CVE-2016-10197

The searchmakenew function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service out-of-bounds read via an empty hostname...

ALPINE-CVE-2016-10197

The searchmakenew function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service out-of-bounds read via an empty hostname...

CVE-2016-10197

The searchmakenew function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service out-of-bounds read via an empty hostname...

ALPINE-CVE-2016-10195

The nameparse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the labellen variable, which triggers an out-of-bounds stack read...

DEBIAN-CVE-2016-10195

The nameparse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the labellen variable, which triggers an out-of-bounds stack read...

DEBIAN-CVE-2016-10197

The searchmakenew function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service out-of-bounds read via an empty hostname...

UBUNTU-CVE-2016-10197

The searchmakenew function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service out-of-bounds read via an empty hostname...

UBUNTU-CVE-2016-10195

The nameparse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the labellen variable, which triggers an out-of-bounds stack read...