CVE-2026-6238
CVE-2026-6238 · Buffer overread in ns_printrrf with corrupted RDATA field
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The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.0.1 to version 2.43 fail to validate the RDATA content against the RDATA length in a DNS response when processing A6, CERT, LOC, TKEY or TSIG records, which may allow an attacker to craft a DNS response, causing a target application to crash or read uninitialized memory. These functions are for application debugging only and hence not in the path of code executed by the DNS resolver. Further, they have been deprecated since version 2.34 and should not be used by any new applications. Applications should consider porting away from these interfaces since they may be removed in future versions.
CVSS 6.5 · Mittel · EPSS 0,4% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: system
Betroffene Produkte und Versionen
glibc
- Softwareversionen
- ≥ 2.0.1, ≤ 2.43: Betroffen (custom)
Keine Korrektur veröffentlicht
glibc Debian:12
- Softwareversionen
- 2.36-10~0
- 2.36-9
- 2.36-9+deb12u1
- 2.36-9+deb12u10
- 2.36-9+deb12u11
- 2.36-9+deb12u12
- 2.36-9+deb12u13
- 2.36-9+deb12u14
- 2.36-9+deb12u2
- 2.36-9+deb12u3
- 2.36-9+deb12u4
- 2.36-9+deb12u5
- 2.36-9+deb12u6
- 2.36-9+deb12u7
- 2.36-9+deb12u8
- 2.36-9+deb12u9
- 2.36-9+loong64
- 2.37-1
- 2.37-10
- 2.37-11
- 2.37-12
- 2.37-13
- 2.37-14
- 2.37-15
- 2.37-15.1
- 2.37-15.1+sh4
- 2.37-15~deb13u1
- 2.37-16
- 2.37-17
- 2.37-18
- 2.37-19
- 2.37-2
- 2.37-3
- 2.37-4
- 2.37-5
- 2.37-6
- 2.37-7
- 2.37-8
- 2.37-9
- 2.38-1
- 2.38-10
- 2.38-11
- 2.38-12
- 2.38-12.1
- 2.38-13
- 2.38-14
- 2.38-15~0
- 2.38-15~1
- 2.38-2
- 2.38-3
- 2.38-4
- 2.38-5
- 2.38-6
- 2.38-7
- 2.38-7~0+hurd.1
- 2.38-8
- 2.38-9
- 2.39-1
- 2.39-2
- 2.39-3
- 2.39-3.1
- 2.39-4
- 2.39-5
- 2.39-6
- 2.39-6+hurd.1
- 2.39-6+sh4
- 2.39-7
- 2.39-7+sh4
- 2.39-7~0
- 2.39-8~0
- 2.40-1
- 2.40-2
- 2.40-2+sh4
- 2.40-3
- 2.40-3+sh4
- 2.40-4
- 2.40-5
- 2.40-5~hurd.1
- 2.40-6
- 2.40-6~1
- 2.40-7
- 2.41-1
- 2.41-10
- 2.41-11
- 2.41-12
- 2.41-13~hurd.0
- 2.41-13~hurd.1
- 2.41-2
- 2.41-3
- 2.41-4
- 2.41-4~0
- 2.41-5
- 2.41-5~0
- 2.41-6
- 2.41-7
- 2.41-8
- 2.41-8~0
- 2.41-8~1
- 2.41-9
- 2.41-9~0
- 2.41-9~1
- 2.42-1
- 2.42-10
- 2.42-11
- 2.42-12
- 2.42-12~hurd.1
- 2.42-13
- 2.42-14
- 2.42-14~hurd.1
- 2.42-15
- 2.42-15~hurd.1
- 2.42-16
- 2.42-17
- 2.42-2
- 2.42-3
- 2.42-4
- 2.42-5
- 2.42-6
- 2.42-7
- 2.42-8
- 2.42-8~hurd.1
- 2.42-8~hurd.2
- 2.42-9
- 2.43-1
- 2.43-2
- 2.43-3
- 2.43-3+m68k
- 2.43-4
- 2.43-4+m68k
- 2.43-5
- 2.43-6
- 2.43-7~hurd.1
- 2.44-1
- 2.44-2
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
glibc Debian:13
- Softwareversionen
- 2.41-12
- 2.41-12+deb13u1
- 2.41-12+deb13u2
- 2.41-12+deb13u3
- 2.41-12+deb13u4
- 2.41-13~hurd.0
- 2.41-13~hurd.1
- 2.42-1
- 2.42-10
- 2.42-11
- 2.42-12
- 2.42-12~hurd.1
- 2.42-13
- 2.42-14
- 2.42-14~hurd.1
- 2.42-15
- 2.42-15~hurd.1
- 2.42-16
- 2.42-17
- 2.42-2
- 2.42-3
- 2.42-4
- 2.42-5
- 2.42-6
- 2.42-7
- 2.42-8
- 2.42-8~hurd.1
- 2.42-8~hurd.2
- 2.42-9
- 2.43-1
- 2.43-2
- 2.43-3
- 2.43-3+m68k
- 2.43-4
- 2.43-4+m68k
- 2.43-5
- 2.43-6
- 2.43-7~hurd.1
- 2.44-1
- 2.44-2
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
glibc Debian:14
- Softwareversionen
- 2.41-12
- 2.41-13~hurd.0
- 2.41-13~hurd.1
- 2.42-1
- 2.42-10
- 2.42-11
- 2.42-12
- 2.42-12~hurd.1
- 2.42-13
- 2.42-14
- 2.42-14~hurd.1
- 2.42-15
- 2.42-15~hurd.1
- 2.42-16
- 2.42-17
- 2.42-2
- 2.42-3
- 2.42-4
- 2.42-5
- 2.42-6
- 2.42-7
- 2.42-8
- 2.42-8~hurd.1
- 2.42-8~hurd.2
- 2.42-9
- 2.43-1
- 2.43-2
- Betroffene Versionsbereiche
- ECOSYSTEM: < 2.43-3
Auf 2.43-3 aktualisieren
eglibc Ubuntu:Pro:14.04:LTS
- Softwareversionen
- 2.17-93ubuntu4
- 2.18-0ubuntu1
- 2.18-0ubuntu2
- 2.18-0ubuntu4
- 2.18-0ubuntu5
- 2.18-0ubuntu6
- 2.18-0ubuntu7
- 2.19-0ubuntu2
- 2.19-0ubuntu3
- 2.19-0ubuntu4
- 2.19-0ubuntu5
- 2.19-0ubuntu6
- 2.19-0ubuntu6.1
- 2.19-0ubuntu6.3
- 2.19-0ubuntu6.4
- 2.19-0ubuntu6.5
- 2.19-0ubuntu6.6
- 2.19-0ubuntu6.7
- 2.19-0ubuntu6.8
- 2.19-0ubuntu6.9
- 2.19-0ubuntu6.10
- 2.19-0ubuntu6.11
- 2.19-0ubuntu6.13
- 2.19-0ubuntu6.14
- 2.19-0ubuntu6.15
- 2.19-0ubuntu6.15+esm1
- 2.19-0ubuntu6.15+esm2
- 2.19-0ubuntu6.15+esm3
- 2.19-0ubuntu6.15+esm4
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
glibc Ubuntu:Pro:16.04:LTS
- Softwareversionen
- 2.21-0ubuntu4
- 2.21-0ubuntu5
- 2.21-0ubuntu6
- 2.23-0ubuntu1
- 2.23-0ubuntu2
- 2.23-0ubuntu3
- 2.23-0ubuntu4
- 2.23-0ubuntu5
- 2.23-0ubuntu6
- 2.23-0ubuntu7
- 2.23-0ubuntu9
- 2.23-0ubuntu10
- 2.23-0ubuntu11
- 2.23-0ubuntu11.2
- 2.23-0ubuntu11.3
- 2.23-0ubuntu11.3+esm1
- 2.23-0ubuntu11.3+esm2
- 2.23-0ubuntu11.3+esm3
- 2.23-0ubuntu11.3+esm5
- 2.23-0ubuntu11.3+esm6
- 2.23-0ubuntu11.3+esm7
- 2.23-0ubuntu11.3+esm8
- 2.23-0ubuntu11.3+esm9
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
glibc Ubuntu:Pro:18.04:LTS
- Softwareversionen
- 2.26-0ubuntu2
- 2.26-0ubuntu2.1
- 2.27-0ubuntu2
- 2.27-0ubuntu3
- 2.27-3ubuntu1
- 2.27-3ubuntu1.2
- 2.27-3ubuntu1.3
- 2.27-3ubuntu1.4
- 2.27-3ubuntu1.5
- 2.27-3ubuntu1.6
- 2.27-3ubuntu1.6+esm1
- 2.27-3ubuntu1.6+esm2
- 2.27-3ubuntu1.6+esm3
- 2.27-3ubuntu1.6+esm4
- 2.27-3ubuntu1.6+esm5
- 2.27-3ubuntu1.6+esm6
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
glibc Ubuntu:Pro:20.04:LTS
- Softwareversionen
- 2.30-0ubuntu2
- 2.30-0ubuntu3
- 2.31-0ubuntu5
- 2.31-0ubuntu6
- 2.31-0ubuntu7
- 2.31-0ubuntu9
- 2.31-0ubuntu9.1
- 2.31-0ubuntu9.2
- 2.31-0ubuntu9.3
- 2.31-0ubuntu9.7
- 2.31-0ubuntu9.9
- 2.31-0ubuntu9.12
- 2.31-0ubuntu9.14
- 2.31-0ubuntu9.15
- 2.31-0ubuntu9.16
- 2.31-0ubuntu9.17
- 2.31-0ubuntu9.18
- 2.31-0ubuntu9.18+esm1
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
glibc Ubuntu:22.04:LTS
- Softwareversionen
- 2.34-0ubuntu3
- 2.35-0ubuntu1
- 2.35-0ubuntu3
- 2.35-0ubuntu3.1
- 2.35-0ubuntu3.3
- 2.35-0ubuntu3.4
- 2.35-0ubuntu3.5
- 2.35-0ubuntu3.6
- 2.35-0ubuntu3.7
- 2.35-0ubuntu3.8
- 2.35-0ubuntu3.9
- 2.35-0ubuntu3.10
- 2.35-0ubuntu3.11
- 2.35-0ubuntu3.12
- 2.35-0ubuntu3.13
- Betroffene Versionsbereiche
- ECOSYSTEM: < 2.35-0ubuntu3.14
Auf 2.35-0ubuntu3.14 aktualisieren
glibc Ubuntu:24.04:LTS
- Softwareversionen
- 2.38-1ubuntu6
- 2.38-3ubuntu1
- 2.39-0ubuntu1
- 2.39-0ubuntu2
- 2.39-0ubuntu6
- 2.39-0ubuntu8
- 2.39-0ubuntu8.1
- 2.39-0ubuntu8.2
- 2.39-0ubuntu8.3
- 2.39-0ubuntu8.4
- 2.39-0ubuntu8.5
- 2.39-0ubuntu8.6
- 2.39-0ubuntu8.7
- Betroffene Versionsbereiche
- ECOSYSTEM: < 2.39-0ubuntu8.8
Auf 2.39-0ubuntu8.8 aktualisieren
glibc Ubuntu:25.10
- Softwareversionen
- 2.41-6ubuntu1
- 2.41-6ubuntu2
- 2.41-9ubuntu1
- 2.42-0ubuntu1
- 2.42-0ubuntu3
- 2.42-0ubuntu3.1
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
glibc Ubuntu:26.04:LTS
- Softwareversionen
- 2.42-0ubuntu3
- 2.42-2ubuntu1
- 2.42-2ubuntu2
- 2.42-2ubuntu4
- 2.42-2ubuntu5
- 2.43-2ubuntu1
- 2.43-2ubuntu2
- Betroffene Versionsbereiche
- ECOSYSTEM: < 2.43-2ubuntu2.3
Auf 2.43-2ubuntu2.3 aktualisieren