ROS-20261023-73-0014

The vulnerability of the dnsnametolabels function in the Libevent asynchronous event notification library is related to the occurrence of operations outside the buffer in memory. Exploiting this vulnerability could allow a malicious actor to cause service failures...

CLSA-2026-1792536927 libevent: Fix of 5 CVEs

CVE-2026-63383: fix out-of-bounds read in decodetaginternal - CVE-2026-63384: reject payload lengths above INTMAX in evtagunmarshalheader - CVE-2026-63387: fix off-by-one stack buffer overflow in dnsnametolabels - CVE-2026-63385: reject HTTP header values containing CR or LF - CVE-2026-63382:...

CLSA-2026-1792537208 libevent: Fix of 5 CVEs

CVE-2026-63383: fix out-of-bounds read in decodetaginternal - CVE-2026-63384: reject payload lengths above INTMAX in evtagunmarshalheader - CVE-2026-63387: fix off-by-one stack buffer overflow in dnsnametolabels - CVE-2026-63385: reject HTTP header values containing CR or LF - CVE-2026-63382:...

CLSA-2026-1792536579 libevent: Fix of 5 CVEs

CVE-2026-63383: fix out-of-bounds read in decodetaginternal - CVE-2026-63384: reject payload lengths above INTMAX in evtagunmarshalheader - CVE-2026-63387: fix off-by-one stack buffer overflow in dnsnametolabels - CVE-2026-63385: reject HTTP header values containing CR or LF - CVE-2026-63382:...

CLSA-2026-1791302296 Fix CVE(s): CVE-2026-63387

SECURITY UPDATE: off-by-one stack overflow in dnsnametolabels - debian/patches/CVE-2026-63387.patch: fail instead of writing the terminating zero label past the end of the buffer in evdns.c - CVE-2026-63387...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: libevent (UTSA-2026-124531)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-124531 advisory. 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 ...

libevent security update

2.1.8-11 - Fix CVE-2026-63385: HTTP header injection via CRLF in header values - Resolves: RHEL-253566 2.1.8-10 - Fix CVE-2026-63387: out-of-bounds write in evdns dnsnametolabels - Resolves: RHEL-249889 2.1.8-9 - Fix CVE-2026-63383: out-of-bounds read in decodetaginternal - Resolves: RHEL-250240...

libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption

A flaw was found in Libevent, an event notification library. An off-by-one stack buffer overflow exists in the dnsnametolabels function when processing a name-bearing DNS record. A remote attacker could send a specially crafted DNS server response, which may lead to a crash or corruption of the...

libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption

A flaw was found in Libevent, an event notification library. An off-by-one stack buffer overflow exists in the dnsnametolabels function when processing a name-bearing DNS record. A remote attacker could send a specially crafted DNS server response, which may lead to a crash or corruption of the...

libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption

A flaw was found in Libevent, an event notification library. An off-by-one stack buffer overflow exists in the dnsnametolabels function when processing a name-bearing DNS record. A remote attacker could send a specially crafted DNS server response, which may lead to a crash or corruption of the...

CVE-2026-63387

A flaw was found in Libevent, an event notification library. An off-by-one stack buffer overflow exists in the dnsnametolabels function when processing a name-bearing DNS record. A remote attacker could send a specially crafted DNS server response, which may lead to a crash or corruption of the...

Libevent DNS Name Buffer Overflow DoS

The vulnerability of the dnsnametolabels function in the Libevent asynchronous event notification library is related to the occurrence of operations outside the buffer in memory. Exploiting this vulnerability could allow a malicious actor to cause service failures...

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...

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...

CVE-2026-63387: Stack-based Buffer Overflow

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...

CVE-2026-63387: Stack-based Buffer Overflow

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...