Catalogo CVE

CVE-2026-8674

Gravità: Medium · CVSS 5.3CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Sep 17, 2026, 4:54:27 PM UTC
Updated: Sep 17, 2026, 5:16:53 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.32% · Oct 22, 2026

Initializing the DNS stub resolver from an /etc/resolv.conf file, or a LOCALDOMAIN environment variable, whose search list contains a domain of roughly 200 characters or more in the GNU C Library version 2.26 to 2.44 results in an assertion failure which aborts the process. The resolver truncates the search list when copying it into the fixed-size _res.defdname buffer, then asserts that the copy is consistent with the full configuration. The consistency check compared against the wrong size and did not handle a first entry that does not fit, so a correctly truncated list failed the assertion. Any process that resolves names through the library is affected, including long-running processes that reload /etc/resolv.conf on the next query after it changes. Search domains are commonly written to /etc/resolv.conf from data received over DHCP or from a VPN server, so an attacker on the local network may be able to trigger this without privileges on the target system, subject to validation by the network configuration software.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	glibc	sid	`2.43-7`	fixed
Debian	glibc	forky	`2.43-7`	fixed
Debian	glibc	trixie	`2.41-12+deb13u4`	vulnerable
Debian	glibc	bookworm	`2.36-9+deb12u14`	vulnerable
Debian	glibc	bookworm-security	`2.36-9+deb12u7`	vulnerable
Ubuntu	eglibc	pro	`2.17-93ubuntu4`	vulnerable
Ubuntu	eglibc	pro	`2.18-0ubuntu1`	vulnerable
Ubuntu	eglibc	pro	`2.18-0ubuntu2`	vulnerable
Ubuntu	eglibc	pro	`2.18-0ubuntu4`	vulnerable
Ubuntu	eglibc	pro	`2.18-0ubuntu5`	vulnerable
Ubuntu	eglibc	pro	`2.18-0ubuntu6`	vulnerable
Ubuntu	eglibc	pro	`2.18-0ubuntu7`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu2`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu3`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu4`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu5`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.1`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.3`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.4`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.5`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.6`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.7`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.8`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.9`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.10`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.11`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.13`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.14`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.15`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.15+esm1`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.15+esm2`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.15+esm3`	vulnerable
Ubuntu	eglibc	pro	`2.19-0ubuntu6.15+esm4`	vulnerable
Ubuntu	glibc	pro	`2.30-0ubuntu2`	vulnerable
Ubuntu	glibc	pro	`2.30-0ubuntu3`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu5`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu6`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu7`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.1`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.2`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.3`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.7`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.9`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.12`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.14`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.15`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.16`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.17`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.18`	vulnerable
Ubuntu	glibc	pro	`2.31-0ubuntu9.18+esm1`	vulnerable
Ubuntu	glibc	22.04	`2.34-0ubuntu3`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu1`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.1`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.3`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.4`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.5`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.6`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.7`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.8`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.9`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.10`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.11`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.12`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.13`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.14`	vulnerable
Ubuntu	glibc	22.04	`2.35-0ubuntu3.15`	vulnerable
Ubuntu	glibc	24.04	`2.38-1ubuntu6`	vulnerable
Ubuntu	glibc	24.04	`2.38-3ubuntu1`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu1`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu2`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu6`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.1`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.2`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.3`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.4`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.5`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.6`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.7`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.8`	vulnerable
Ubuntu	glibc	24.04	`2.39-0ubuntu8.9`	vulnerable
Ubuntu	glibc	26.04	`2.42-0ubuntu3`	vulnerable
Ubuntu	glibc	26.04	`2.42-2ubuntu1`	vulnerable
Ubuntu	glibc	26.04	`2.42-2ubuntu2`	vulnerable
Ubuntu	glibc	26.04	`2.42-2ubuntu4`	vulnerable
Ubuntu	glibc	26.04	`2.42-2ubuntu5`	vulnerable
Ubuntu	glibc	26.04	`2.43-2ubuntu1`	vulnerable
Ubuntu	glibc	26.04	`2.43-2ubuntu2`	vulnerable
Ubuntu	glibc	26.04	`2.43-2ubuntu2.3`	vulnerable
Ubuntu	glibc	26.04	`2.43-2ubuntu2.4`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	glibc	source	sid	`2.43-6`	not yet assigned	Not reported	[1148168]
Debian	glibc	source	forky	`2.43-6`	not yet assigned	Not reported	[1148168]
Debian	glibc	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1148168]
Debian	glibc	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1148168]

[Debian bug #1148168]

Notes

[trixie] glibc: Minor issue [bookworm] glibc: Minor issue, DoS

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[glibc-doc]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[glibc-source]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc6]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc6-dbg]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc6-dev]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc6-dev-i386]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc6-dev-x32]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc6-i386]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc6-x32]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc-bin]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc-dev-bin]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc-devtools]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[libc-l10n]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[locales]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · all · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · all · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[locales-all]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
[nscd]Interessata
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u14 · arm64 · bookworm
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Interessata
  nvd · glibc · debian · bookworm; nvd · glibc · debian · 12

[Debian 13 (Trixie)]

[glibc-doc]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.41-12+deb13u3 · all · trixie
  Interessata
  nvd · glibc · debian · 13
- 2.41-12+deb13u3 · all · trixie
  Interessata
  nvd · glibc · debian · 13
[glibc-source]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.41-12+deb13u3 · all · trixie
  Interessata
  nvd · glibc · debian · 13
- 2.41-12+deb13u3 · all · trixie
  Interessata
  nvd · glibc · debian · 13
[libc6]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.41-12+deb13u3 · amd64 · trixie
  Interessata
  nvd · glibc · debian · 13
- 2.41-12+deb13u3 · arm64 · trixie
  Interessata
  nvd · glibc · debian · 13
[libc6-dbg]Interessata
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.41-12+deb13u3 · amd64 · trixie
  Interessata
  nvd · glibc · debian · 13
- 2.41-12+deb13u3 · arm64 · trixie
  Interessata
  nvd · glibc · debian · 13

Altri risultati

Osservato: Oct 23, 2026, 8:55:12 PM UTC

Riferimenti

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]