Catalogo CVE

CVE-2021-43396

glibc: CVE-2021-43396

Gravità: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C
Published: Nov 4, 2021, 8:15:09 PM UTC
Source: [NVD] · [CVE record]
EPSS: 3.29% · Oct 22, 2026

In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious '\0' character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states "the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there's no security impact to the bug.

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`	fixed
Debian	glibc	bookworm	`2.36-9+deb12u14`	fixed
Debian	glibc	bookworm-security	`2.36-9+deb12u7`	fixed
Cpe	glibc	Not reported	Not reported	unknown
Cpe	communications_cloud_native_core_binding_support_function	Not reported	Not reported	unknown
Cpe	communications_cloud_native_core_network_function_cloud_native_environment	Not reported	Not reported	unknown
Cpe	communications_cloud_native_core_network_repository_function	Not reported	Not reported	unknown
Cpe	communications_cloud_native_core_security_edge_protection_proxy	Not reported	Not reported	unknown
Cpe	communications_cloud_native_core_unified_data_repository	Not reported	Not reported	unknown
Cpe	enterprise_operations_monitor	Not reported	Not reported	unknown

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	glibc	source	sid	`2.32-5`	unimportant	Not reported	[998622]
Debian	glibc	source	forky	`2.32-5`	unimportant	Not reported	[998622]
Debian	glibc	source	trixie	`2.32-5`	unimportant	Not reported	[998622]
Debian	glibc	source	bookworm	`2.32-5`	unimportant	Not reported	[998622]

[Debian bug #998622]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[glibc-doc]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[glibc-source]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc6]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc6-dbg]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc6-dev]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc6-dev-i386]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc6-dev-x32]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc6-i386]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc6-x32]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc-bin]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc-dev-bin]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc-devtools]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[libc-l10n]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[locales]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[locales-all]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
[nscd]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.32-5
  dsa · glibc · debian · bookworm

Osservato: Oct 23, 2026, 6:03:21 PM UTC

Riferimenti

[CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]