Catalogo CVE

CVE-2021-3999

glibc: CVE-2021-3999

Gravità: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Published: Jan 24, 2022, 11:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.81% · Oct 22, 2026

A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.

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	`2.31`	fixed
Cpe	debian_linux	Not reported	Not reported	unknown
Cpe	e-series_performance_analyzer	Not reported	Not reported	unknown
Cpe	nfs_plug-in	Not reported	Not reported	unknown
Cpe	ontap_select_deploy_administration_utility	Not reported	Not reported	unknown
Cpe	h300s_firmware	Not reported	Not reported	unknown
Cpe	h500s_firmware	Not reported	Not reported	unknown
Cpe	h700s_firmware	Not reported	Not reported	unknown
Cpe	h410s_firmware	Not reported	Not reported	unknown
Cpe	h410c_firmware	Not reported	Not reported	unknown
Ubuntu	glibc	pro	`2.21-0ubuntu4`	vulnerable
Ubuntu	glibc	pro	`2.21-0ubuntu5`	vulnerable
Ubuntu	glibc	pro	`2.21-0ubuntu6`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu1`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu2`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu3`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu4`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu5`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu6`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu7`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu9`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu10`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11.2`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11.3`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11.3+esm1`	fixed
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`	fixed
Ubuntu	glibc	pro	`2.21-0ubuntu4`	vulnerable
Ubuntu	glibc	pro	`2.21-0ubuntu5`	vulnerable
Ubuntu	glibc	pro	`2.21-0ubuntu6`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu1`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu2`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu3`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu4`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu5`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu6`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu7`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu9`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu10`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11.2`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11.3`	vulnerable
Ubuntu	glibc	pro	`2.23-0ubuntu11.3+esm1`	fixed
Ubuntu	glibc	18.04	`2.26-0ubuntu2`	vulnerable
Ubuntu	glibc	18.04	`2.26-0ubuntu2.1`	vulnerable
Ubuntu	glibc	18.04	`2.27-0ubuntu2`	vulnerable
Ubuntu	glibc	18.04	`2.27-0ubuntu3`	vulnerable
Ubuntu	glibc	18.04	`2.27-3ubuntu1`	vulnerable
Ubuntu	glibc	18.04	`2.27-3ubuntu1.2`	vulnerable
Ubuntu	glibc	18.04	`2.27-3ubuntu1.3`	vulnerable
Ubuntu	glibc	18.04	`2.27-3ubuntu1.4`	vulnerable
Ubuntu	glibc	18.04	`2.27-3ubuntu1.5`	fixed
Ubuntu	glibc	20.04	`2.30-0ubuntu2`	vulnerable
Ubuntu	glibc	20.04	`2.30-0ubuntu3`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu5`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu6`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu7`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu9`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu9.1`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu9.2`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu9.3`	vulnerable
Ubuntu	glibc	20.04	`2.31-0ubuntu9.7`	fixed
Opensuse	glibc	leap 15.3	`2.31-150300.9.12.1`	fixed
Suse	glibc	linux enterprise module for basesystem 15 sp3	`2.31-150300.9.12.1`	fixed
Suse	glibc	linux enterprise module for development tools 15 sp3	`2.31-150300.9.12.1`	fixed
Suse	glibc	linux enterprise micro 5.1	`2.31-150300.9.12.1`	fixed
Suse	glibc	hpe helion openstack 8	`2.22-119.1`	fixed
Suse	glibc	openstack cloud 8	`2.22-119.1`	fixed
Suse	glibc	openstack cloud crowbar 8	`2.22-119.1`	fixed
Suse	glibc	linux enterprise server for sap applications 12 sp3	`2.22-119.1`	fixed
Suse	glibc	linux enterprise server 12 sp2-bcl	`2.22-119.1`	fixed
Suse	glibc	linux enterprise server 12 sp3-ltss	`2.22-119.1`	fixed
Suse	glibc	linux enterprise server 12 sp3-bcl	`2.22-119.1`	fixed
Suse	glibc	openstack cloud 9	`2.22-114.19.1`	fixed
Suse	glibc	openstack cloud crowbar 9	`2.22-114.19.1`	fixed
Suse	glibc	linux enterprise server for sap applications 12 sp4	`2.22-114.19.1`	fixed
Suse	glibc	linux enterprise software development kit 12 sp5	`2.22-114.19.1`	fixed
Suse	glibc	linux enterprise server 12 sp4-ltss	`2.22-114.19.1`	fixed
Suse	glibc	linux enterprise server 12 sp5	`2.22-114.19.1`	fixed
Suse	glibc	linux enterprise server for sap applications 12 sp5	`2.22-114.19.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	glibc	source	sid	`2.33-4`	not yet assigned	Not reported	Not reported
Debian	glibc	source	forky	`2.33-4`	not yet assigned	Not reported	Not reported
Debian	glibc	source	trixie	`2.33-4`	not yet assigned	Not reported	Not reported
Debian	glibc	source	bookworm	`2.33-4`	not yet assigned	Not reported	Not reported
Cpe	glibc	cpe	Not reported	`2.31`	Not reported	NVD-CVE-2021-3999	Not reported
Ubuntu	glibc	deb	pro	`2.23-0ubuntu11.3+esm1`	Not reported	USN-5310-2	Not reported
Ubuntu	eglibc	deb	pro	`2.19-0ubuntu6.15+esm3`	Not reported	UBUNTU-CVE-2021-3999	Not reported
Ubuntu	glibc	deb	pro	`2.23-0ubuntu11.3+esm1`	Not reported	UBUNTU-CVE-2021-3999	Not reported
Ubuntu	glibc	deb	18.04	`2.27-3ubuntu1.5`	Not reported	UBUNTU-CVE-2021-3999	Not reported
Ubuntu	glibc	deb	20.04	`2.31-0ubuntu9.7`	Not reported	UBUNTU-CVE-2021-3999	Not reported
Opensuse	glibc	rpm	leap 15.3	`2.31-150300.9.12.1`	Not reported	OPENSUSE-SU-2022:0330-1	Not reported
Suse	glibc	rpm	linux enterprise module for basesystem 15 sp3	`2.31-150300.9.12.1`	Not reported	SUSE-SU-2022:0330-1	Not reported
Suse	glibc	rpm	linux enterprise module for development tools 15 sp3	`2.31-150300.9.12.1`	Not reported	SUSE-SU-2022:0330-1	Not reported
Suse	glibc	rpm	linux enterprise micro 5.1	`2.31-150300.9.12.1`	Not reported	SUSE-SU-2022:0330-1	Not reported
Suse	glibc	rpm	hpe helion openstack 8	`2.22-119.1`	Not reported	SUSE-SU-2022:0909-1	Not reported
Suse	glibc	rpm	openstack cloud 8	`2.22-119.1`	Not reported	SUSE-SU-2022:0909-1	Not reported
Suse	glibc	rpm	openstack cloud crowbar 8	`2.22-119.1`	Not reported	SUSE-SU-2022:0909-1	Not reported
Suse	glibc	rpm	linux enterprise server for sap applications 12 sp3	`2.22-119.1`	Not reported	SUSE-SU-2022:0909-1	Not reported
Suse	glibc	rpm	linux enterprise server 12 sp2-bcl	`2.22-119.1`	Not reported	SUSE-SU-2022:0909-1	Not reported
Suse	glibc	rpm	linux enterprise server 12 sp3-ltss	`2.22-119.1`	Not reported	SUSE-SU-2022:0909-1	Not reported
Suse	glibc	rpm	linux enterprise server 12 sp3-bcl	`2.22-119.1`	Not reported	SUSE-SU-2022:0909-1	Not reported
Suse	glibc	rpm	openstack cloud 9	`2.22-114.19.1`	Not reported	SUSE-SU-2022:0441-1	Not reported
Suse	glibc	rpm	openstack cloud crowbar 9	`2.22-114.19.1`	Not reported	SUSE-SU-2022:0441-1	Not reported
Suse	glibc	rpm	linux enterprise server for sap applications 12 sp4	`2.22-114.19.1`	Not reported	SUSE-SU-2022:0441-1	Not reported
Suse	glibc	rpm	linux enterprise software development kit 12 sp5	`2.22-114.19.1`	Not reported	SUSE-SU-2022:0441-1	Not reported
Suse	glibc	rpm	linux enterprise server 12 sp4-ltss	`2.22-114.19.1`	Not reported	SUSE-SU-2022:0441-1	Not reported
Suse	glibc	rpm	linux enterprise server 12 sp5	`2.22-114.19.1`	Not reported	SUSE-SU-2022:0441-1	Not reported
Suse	glibc	rpm	linux enterprise server for sap applications 12 sp5	`2.22-114.19.1`	Not reported	SUSE-SU-2022:0441-1	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[glibc-doc]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[glibc-source]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc6]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc6-dbg]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc6-dev]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc6-dev-i386]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc6-dev-x32]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc6-i386]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc6-x32]Corretta
Pacchetto sorgente: [glibc]
Dettagli (2)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc-bin]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc-dev-bin]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc-devtools]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[libc-l10n]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[locales]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · all · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · all · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[locales-all]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
[nscd]Corretta
Pacchetto sorgente: [glibc]
Dettagli (4)
- 2.36-9+deb12u14 · amd64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u14 · arm64 · bookworm
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · amd64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm
- 2.36-9+deb12u7 · arm64 · bookworm-security
  Corretta · Corretta: 2.33-4
  dsa · glibc · debian · bookworm

Osservato: Oct 23, 2026, 6:02:19 PM UTC

Riferimenti

[CERT-Bund public advisories] · [CISA cybersecurity 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]