CVE-2026-48487 Zeroconf: Unvalidated rdlength in record payload readers allows LAN-local cache corruption via crafted mDNS packet

Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.16, readcharacterstring and readstring in src/zeroconf/protocol/incoming.py advanced self.offset by attacker-declared RDLENGTH without checking it against self.datalen, allowing unauthenticated hosts on th...

CVE-2026-48487 Zeroconf: Unvalidated rdlength in record payload readers allows LAN-local cache corruption via crafted mDNS packet

Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.16, readcharacterstring and readstring in src/zeroconf/protocol/incoming.py advanced self.offset by attacker-declared RDLENGTH without checking it against self.datalen, allowing unauthenticated hosts on th...

PYSEC-2026-3438 zeroconf: Unvalidated rdlength in record payload readers allows LAN-local cache corruption via crafted mDNS packet

Impact readcharacterstring and readstring in src/zeroconf/protocol/incoming.py sliced self.dataself.offset : self.offset + length and advanced self.offset by the declared length without checking it against self.datalen. Python's slice silently returns fewer bytes when the end index runs past the...

zeroconf: Unvalidated rdlength in record payload readers allows LAN-local cache corruption via crafted mDNS packet

Impactreadcharacterstring and readstring in src/zeroconf/protocol/incoming.py sliced self.dataself.offset : self.offset + length and advanced self.offset by the declared length without checking it against self.datalen. Python's slice silently returns fewer bytes when the end index runs past the...

CVE-2026-10652

Zephyr's DNS resolver subsys/net/lib/dns parses resource records from DNS responses in dnsunpackanswer, which validated only the fixed RR header type, class, TTL, rdlength and accepted any attacker-declared rdlength, including one extending past the end of the received datagram. The TXT and SRV...

CVE-2026-10652 Out-of-bounds read in Zephyr DNS resolver TXT/SRV record parsing (unvalidated `rdlength`)

Zephyr's DNS resolver subsys/net/lib/dns parses resource records from DNS responses in dnsunpackanswer, which validated only the fixed RR header type, class, TTL, rdlength and accepted any attacker-declared rdlength, including one extending past the end of the received datagram. The TXT and SRV...

EUVD-2023-36953

Malicious code in bioql PyPI...

EUVD-2025-9924

Malicious code in bioql PyPI...

CVE-2025-32366

A flaw was found in ConnMan's DNS proxy component. This vulnerability allows an attacker to cause a buffer overread or memory corruption via a crafted DNS response due to improper validation of the RDLENGTH field before using it in a memcpy operation. Mitigation Mitigation for this issue is eithe...

CVE-2025-32366

In ConnMan through 1.44, parserr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., rdlen=ntohsrr-rdlen and memcpyresponse+offset,end,rdlen without a check for whether the sum of end and rdlen exceeds max. Consequently, rdlen may be larger than the amount of remaining...

CVE-2025-32366

In ConnMan through 1.44, parserr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., rdlen=ntohsrr-rdlen and memcpyresponse+offset,end,rdlen without a check for whether the sum of end and rdlen exceeds max. Consequently, rdlen may be larger than the amount of remaining...

CVE-2025-32366

In ConnMan through 1.44, parserr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., rdlen=ntohsrr-rdlen and memcpyresponse+offset,end,rdlen without a check for whether the sum of end and rdlen exceeds max. Consequently, rdlen may be larger than the amount of remaining...

CVE-2025-32366

In ConnMan up to version 1.44, the DNS proxy code path parse_rr in dnsproxy.c uses a memcpy length derived from an RR RDLENGTH (rdlen) value without validating that end+rdlen stays within the remaining packet data. Specifically, rdlen is computed as ntohs(rr->rdlen) and memcpy(response+offset,...

ConnMan 安全漏洞

ConnMan is an Aldebaran open source connection manager. A security vulnerability exists in ConnMan 1.44 and earlier versions, which stems from a memcpy length dependency on the RR RDLENGTH value...

CVE-2025-32366

In ConnMan through 1.44, parserr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., rdlen=ntohsrr-rdlen and memcpyresponse+offset,end,rdlen without a check for whether the sum of end and rdlen exceeds max. Consequently, rdlen may be larger than the amount of remaining...

DEBIAN-CVE-2023-32726

The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server...

UBUNTU-CVE-2023-32726

The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server...

CVE-2023-32726

The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server...

CVE-2023-32726 Possible buffer overread from reading DNS responses

The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server...

Stack overflow

ConnMan aka Connection Manager 1.30 through 1.39 has a stack-based buffer overflow in uncompress in dnsproxy.c via NAME, RDATA, or RDLENGTH for A or AAAA...