Catalogo CVE

CVE-2020-12823

openconnect affected and fixed versions

OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c.

Gravità: High · CVSS 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Published: May 8, 2020, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 4.74% · Oct 27, 2026

Projects and upstream resources

[openconnect][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debiantrixie	openconnect	`9.12-3+deb13u2`	Fixed	[CVE-2020-12823]
Debiansid	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debiansid	openconnect	`9.21-5`	Fixed	[CVE-2020-12823]
Debianforky	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debianforky	openconnect	`9.21-5`	Fixed	[CVE-2020-12823]
Debianbookworm	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debianbookworm	openconnect	`9.01-3`	Fixed	[CVE-2020-12823]

Showing 8 fix observations. All 24 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	openconnect	`8.10-1`	UnknownSource applicability is not established	Provider not reported
Debianbookworm	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debianbookworm	openconnect	`9.01-3`	Fixed	[CVE-2020-12823]
Debianforky	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debianforky	openconnect	`9.21-5`	Fixed	[CVE-2020-12823]
Debiansid	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debiansid	openconnect	`9.21-5`	Fixed	[CVE-2020-12823]
Debiantrixie	openconnect	`8.10-1`	FixedDistribution-reported fixed boundary	[CVE-2020-12823]
Debiantrixie	openconnect	`9.12-3+deb13u2`	Fixed	[CVE-2020-12823]
Opensuseleap 15.1	openconnect	`7.08-lp151.6.9.1`	UnknownSource applicability is not established	[OPENSUSE-SU-2020:0997-1]Feb 4, 2026, 2:32:07 AM UTC
Opensuseleap 15.2	openconnect	`7.08-lp152.9.4.2`	UnknownSource applicability is not established	[OPENSUSE-SU-2020:1027-1]Feb 4, 2026, 2:45:48 AM UTC
Suselinux enterprise workstation extension 12 sp4	openconnect	`7.08-3.12.1`	UnknownSource applicability is not established	[SUSE-SU-2020:1807-1]Feb 4, 2026, 2:32:07 AM UTC
Suselinux enterprise workstation extension 12 sp5	openconnect	`7.08-3.12.1`	UnknownSource applicability is not established	[SUSE-SU-2020:1807-1]Feb 4, 2026, 2:32:07 AM UTC
Suselinux enterprise workstation extension 15 sp1	openconnect	`7.08-6.9.1`	UnknownSource applicability is not established	[SUSE-SU-2020:1930-1]Feb 4, 2026, 3:26:28 AM UTC
Suselinux enterprise workstation extension 15 sp2	openconnect	`7.08-6.9.1`	UnknownSource applicability is not established	[SUSE-SU-2020:1930-1]Feb 4, 2026, 3:26:28 AM UTC
Ubuntu16.04	openconnect	`7.06-2build1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu16.04	openconnect	`7.06-2build2`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu18.04	openconnect	`7.08-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu18.04	openconnect	`7.08-2`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu18.04	openconnect	`7.08-3`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu18.04	openconnect	`7.08-3ubuntu0.18.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu18.04	openconnect	`7.08-3ubuntu0.18.04.2`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu20.04	openconnect	`8.02-1build1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC
Ubuntu20.04	openconnect	`8.05-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2020-12823]Apr 22, 2026, 12:28:05 PM UTC

Original provider fields

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    {
      "name": "openconnect",
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      "release": "sid",
      "version": "9.21-5"
    },
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      "release": "forky",
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    },
    {
      "name": "openconnect",
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      "release": "trixie",
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    },
    {
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      "fixed_version": "",
      "provider_source": "pypi",
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      "provider_updated_at": "2026-04-22T12:28:05.137392Z",
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      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-12823",
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      "provider_updated_at": "2026-04-22T12:28:05.137392Z",
      "applicability_unknown": true
    },
    {
      "name": "openconnect",
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        }
      ],
      "release": "linux enterprise workstation extension 15 sp1",
      "versions": [],
      "ecosystem": "rpm",
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      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2020:1930-1",
      "provider_updated_at": "2026-02-04T03:26:28.404835Z",
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      ],
      "release": "linux enterprise workstation extension 15 sp2",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2020:1930-1",
      "fixed_version": "7.08-6.9.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2020:1930-1",
      "provider_updated_at": "2026-02-04T03:26:28.404835Z",
      "applicability_unknown": true
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    {
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          ]
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      ],
      "release": "leap 15.2",
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      "provider_source": "pypi",
      "provider_record_id": "OPENSUSE-SU-2020:1027-1",
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      "applicability_unknown": true
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      "release": "linux enterprise workstation extension 12 sp4",
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  ]
}

[Debian bug #960620]

OpenFactory catalog packages

L’associazione dei pacchetti è in corso.

[Debian 12 (Bookworm)]

[libopenconnect5]Sconosciuto
Pacchetto sorgente: [openconnect]
Dettagli (2)
- 9.01-3 · amd64 · bookworm
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · bookworm; dsa · openconnect · debian · 12
- 9.01-3 · arm64 · bookworm
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · bookworm; dsa · openconnect · debian · 12
[libopenconnect-dev]Sconosciuto
Pacchetto sorgente: [openconnect]
Dettagli (2)
- 9.01-3 · amd64 · bookworm
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · bookworm; dsa · openconnect · debian · 12
- 9.01-3 · arm64 · bookworm
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · bookworm; dsa · openconnect · debian · 12
[openconnect]Sconosciuto
Dettagli (2)
- 9.01-3 · amd64 · bookworm
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · bookworm; dsa · openconnect · debian · 12
- 9.01-3 · arm64 · bookworm
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · bookworm; dsa · openconnect · debian · 12

[Debian 13 (Trixie)]

[libopenconnect5]Sconosciuto
Pacchetto sorgente: [openconnect]
Dettagli (2)
- 9.12-3+deb13u2 · amd64 · trixie
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · 13
- 9.12-3+deb13u2 · arm64 · trixie
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · 13
[libopenconnect-dev]Sconosciuto
Pacchetto sorgente: [openconnect]
Dettagli (2)
- 9.12-3+deb13u2 · amd64 · trixie
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · 13
- 9.12-3+deb13u2 · arm64 · trixie
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · 13
[openconnect]Sconosciuto
Dettagli (2)
- 9.12-3+deb13u2 · amd64 · trixie
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · 13
- 9.12-3+deb13u2 · arm64 · trixie
  Corretta · Corretta: 8.10-1
  dsa · openconnect · debian · 13

Osservato: Oct 23, 2026, 5:47:34 PM UTC

Riferimenti

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]