Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed an out-of-bounds write operation through a compressed name in rdatacopy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be remotely or locally exploited...

UBUNTU-CVE-2026-101341

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

UBUNTU-CVE-2026-101339

A HIP resource record that fills the RDATA near or at is limit, and has another dname RDATA field a HIP Rendezvous server can overwrite the stack with up to 191 bytes of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is...

CVE-2026-101341

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

CVE-2026-101341

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

DEBIAN-CVE-2026-101339

A HIP resource record that fills the RDATA near or at is limit, and has another dname RDATA field a HIP Rendezvous server can overwrite the stack with up to 191 bytes of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is...

DEBIAN-CVE-2026-101341

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

EUVD-2026-100985

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

CVE-2026-101341

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

CVE-2026-101341

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

CVE-2026-101341

The NSD name server is vulnerable to an out-of-bound stack write due to insufficient bounds checking on text tokens in RDATA (e.g., TXT records ) under 32 bytes. This flaw allows for arbitrary sized writes , including the potential overwrite of a callback function pointer immediately following a ...

CVE-2026-101341 Stack overwrite from specially formatted TXT-DATA RDATA field

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

CVE-2026-101341

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

CVE-2026-101341 Stack overwrite from specially formatted TXT-DATA RDATA field

Tokens of text in RDATA of for example TXT records under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which ar...

EUVD-2026-100984

A HIP resource record that fills the RDATA near or at is limit, and has another dname RDATA field a HIP Rendezvous server can overwrite the stack with up to 191 bytes of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is...

CVE-2026-101339

A HIP resource record that fills the RDATA near or at is limit, and has another dname RDATA field a HIP Rendezvous server can overwrite the stack with up to 191 bytes of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is...

CVE-2026-101339 Stack overwrite from a specially crafted and formatted HIP RR

A HIP resource record that fills the RDATA near or at is limit, and has another dname RDATA field a HIP Rendezvous server can overwrite the stack with up to 191 bytes of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is...

CVE-2026-101338

When a SVCB or HTTPS RR has filled the wire format RDATA up to the brim, another ECH parameter may overwrite the stack, and once beyond the limit, the base64 decoder can write attacker controlled data of unlimited size. Zone files which are written out by NSD itself, such as for zones for which t...

CVE-2026-101337 Stack overwrite from specially formatted base64 RDATA field

When base64 data is split up in pieces, of 3 character or less, tokens were incorrectly calculated to produce 0 bytes. This enables attackers to overwrite the stack with up to 64K of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD...

CVE-2026-101337

The NSD (Name Server Daemon) is vulnerable to a stack-based buffer overflow (CWE-121 ) due to an incorrect calculation of tokens when base64 data is split into pieces of 3 characters or less. This flaw causes the system to produce 0 bytes incorrectly, allowing an attacker to overwrite the stack w...