CVE catalog

CVE-2020-13645

glib-networking: CVE-2020-13645

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Published: May 28, 2020, 12:15:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 2.02% · Oct 25, 2026

In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnection skips hostname verification of the server's TLS certificate if the application fails to specify the expected server identity. This is in contrast to its intended documented behavior, to fail the certificate verification. Applications that fail to provide the server identity, including Balsa before 2.5.11 and 2.6.x before 2.6.1, accept a TLS certificate if the certificate is valid for any host.

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	glib-networking	sid	`2.90.0-2`	fixed
Debian	glib-networking	forky	`2.90.0-2`	fixed
Debian	glib-networking	trixie	`2.80.1-1`	fixed
Debian	glib-networking	bookworm	`2.74.0-4`	fixed
Ubuntu	glib-networking	16.04	`2.46.0-1`	vulnerable
Ubuntu	glib-networking	16.04	`2.46.1-1`	vulnerable
Ubuntu	glib-networking	16.04	`2.46.1-1build1`	vulnerable
Ubuntu	glib-networking	16.04	`2.48.0-1`	vulnerable
Ubuntu	glib-networking	16.04	`2.48.2-1~ubuntu16.04.1`	vulnerable
Ubuntu	glib-networking	16.04	`2.48.2-1~ubuntu16.04.2`	fixed
Ubuntu	glib-networking	18.04	`2.54.0-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.54.1-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.54.1-2`	vulnerable
Ubuntu	glib-networking	18.04	`2.55.90-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.56.0-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.56.0-1ubuntu0.1`	fixed
Ubuntu	glib-networking	20.04	`2.62.1-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.2-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.3-0build1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.90-1ubuntu1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.91-1ubuntu1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.0-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.1-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.2-1build1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.2-1ubuntu0.1`	fixed
Suse	glib-networking	linux enterprise high performance computing 15-espos	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise high performance computing 15-ltss	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise high performance computing 15 sp1-espos	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise high performance computing 15 sp1-ltss	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise server 15-ltss	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise server 15 sp1-bcl	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise server 15 sp1-ltss	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise server for sap applications 15	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise server for sap applications 15 sp1	`2.54.1-3.6.1`	fixed
Suse	glib-networking	enterprise storage 6	`2.54.1-3.6.1`	fixed
Suse	glib-networking	linux enterprise module for basesystem 15 sp2	`2.62.4-3.3.1`	fixed
Suse	glib-networking	linux enterprise module for basesystem 15 sp3	`2.62.4-3.3.1`	fixed
Suse	glib-networking	linux enterprise micro 5.0	`2.62.4-3.3.1`	fixed
Suse	glib-networking	linux enterprise micro 5.1	`2.62.4-3.3.1`	fixed
Opensuse	glib-networking	leap 15.3	`2.62.4-3.3.1`	fixed
Opensuse	glib-networking	leap 15.2	`2.62.4-lp152.2.3.1`	fixed
Suse	glib-networking	hpe helion openstack 8	`2.48.2-6.3.1`	fixed
Suse	glib-networking	openstack cloud 8	`2.48.2-6.3.1`	fixed
Suse	glib-networking	openstack cloud 9	`2.48.2-6.3.1`	fixed
Suse	glib-networking	openstack cloud crowbar 8	`2.48.2-6.3.1`	fixed
Suse	glib-networking	openstack cloud crowbar 9	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server for sap applications 12 sp3	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server for sap applications 12 sp4	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server 12 sp2-bcl	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server 12 sp3-ltss	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server 12 sp3-bcl	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server 12 sp4-ltss	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server 12 sp5	`2.48.2-6.3.1`	fixed
Suse	glib-networking	linux enterprise server for sap applications 12 sp5	`2.48.2-6.3.1`	fixed
Ubuntu	glib-networking	16.04	`2.46.0-1`	vulnerable
Ubuntu	glib-networking	16.04	`2.46.1-1`	vulnerable
Ubuntu	glib-networking	16.04	`2.46.1-1build1`	vulnerable
Ubuntu	glib-networking	16.04	`2.48.0-1`	vulnerable
Ubuntu	glib-networking	16.04	`2.48.2-1~ubuntu16.04.1`	vulnerable
Ubuntu	glib-networking	16.04	`2.48.2-1~ubuntu16.04.2`	fixed
Ubuntu	glib-networking	18.04	`2.54.0-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.54.1-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.54.1-2`	vulnerable
Ubuntu	glib-networking	18.04	`2.55.90-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.56.0-1`	vulnerable
Ubuntu	glib-networking	18.04	`2.56.0-1ubuntu0.1`	fixed
Ubuntu	balsa	20.04	`2.5.6-2`	vulnerable
Ubuntu	balsa	20.04	`2.5.6-2build1`	vulnerable
Ubuntu	balsa	20.04	`2.5.9-1`	vulnerable
Ubuntu	balsa	20.04	`2.5.9-2`	vulnerable
Ubuntu	balsa	20.04	`2.5.9-3`	vulnerable
Ubuntu	balsa	20.04	`2.5.9-4`	vulnerable
Ubuntu	balsa	20.04	`2.6.0-2`	vulnerable
Ubuntu	balsa	20.04	`2.6.0-2ubuntu0.1`	fixed
Ubuntu	glib-networking	20.04	`2.62.1-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.2-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.3-0build1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.90-1ubuntu1`	vulnerable
Ubuntu	glib-networking	20.04	`2.63.91-1ubuntu1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.0-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.1-1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.2-1build1`	vulnerable
Ubuntu	glib-networking	20.04	`2.64.2-1ubuntu0.1`	fixed
Opensuse	glib-networking	tumbleweed	`2.68.1-1.3`	fixed
Suse	balsa	package hub 15 sp2	`2.6.1-bp153.2.3.1`	fixed
Suse	balsa	package hub 15 sp3	`2.6.1-bp153.2.3.1`	fixed
Opensuse	balsa	leap 15.2	`2.6.1-bp153.2.3.1`	fixed
Opensuse	balsa	leap 15.3	`2.6.1-bp153.2.3.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	glib-networking	source	sid	`2.64.3-2`	not yet assigned	Not reported	[961756]
Debian	glib-networking	source	forky	`2.64.3-2`	not yet assigned	Not reported	[961756]
Debian	glib-networking	source	trixie	`2.64.3-2`	not yet assigned	Not reported	[961756]
Debian	glib-networking	source	bookworm	`2.64.3-2`	not yet assigned	Not reported	[961756]
Ubuntu	glib-networking	deb	16.04	`2.48.2-1~ubuntu16.04.2`	Not reported	USN-4405-1	Not reported
Ubuntu	glib-networking	deb	18.04	`2.56.0-1ubuntu0.1`	Not reported	USN-4405-1	Not reported
Ubuntu	glib-networking	deb	20.04	`2.64.2-1ubuntu0.1`	Not reported	USN-4405-1	Not reported
Suse	glib-networking	rpm	linux enterprise high performance computing 15-espos	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise high performance computing 15-ltss	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise high performance computing 15 sp1-espos	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise high performance computing 15 sp1-ltss	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 15-ltss	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 15 sp1-bcl	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 15 sp1-ltss	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise server for sap applications 15	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise server for sap applications 15 sp1	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	enterprise storage 6	`2.54.1-3.6.1`	Not reported	SUSE-SU-2021:3997-1	Not reported
Suse	glib-networking	rpm	linux enterprise module for basesystem 15 sp2	`2.62.4-3.3.1`	Not reported	SUSE-SU-2021:3944-1	Not reported
Suse	glib-networking	rpm	linux enterprise module for basesystem 15 sp3	`2.62.4-3.3.1`	Not reported	SUSE-SU-2021:3944-1	Not reported
Suse	glib-networking	rpm	linux enterprise micro 5.0	`2.62.4-3.3.1`	Not reported	SUSE-SU-2021:3944-1	Not reported
Suse	glib-networking	rpm	linux enterprise micro 5.1	`2.62.4-3.3.1`	Not reported	SUSE-SU-2021:3944-1	Not reported
Opensuse	glib-networking	rpm	leap 15.3	`2.62.4-3.3.1`	Not reported	OPENSUSE-SU-2021:3944-1	Not reported
Opensuse	glib-networking	rpm	leap 15.2	`2.62.4-lp152.2.3.1`	Not reported	OPENSUSE-SU-2021:1554-1	Not reported
Suse	glib-networking	rpm	hpe helion openstack 8	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	openstack cloud 8	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	openstack cloud 9	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	openstack cloud crowbar 8	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	openstack cloud crowbar 9	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server for sap applications 12 sp3	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server for sap applications 12 sp4	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 12 sp2-bcl	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 12 sp3-ltss	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 12 sp3-bcl	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 12 sp4-ltss	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server 12 sp5	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Suse	glib-networking	rpm	linux enterprise server for sap applications 12 sp5	`2.48.2-6.3.1`	Not reported	SUSE-SU-2021:4004-1	Not reported
Ubuntu	glib-networking	deb	16.04	`2.48.2-1~ubuntu16.04.2`	Not reported	UBUNTU-CVE-2020-13645	Not reported
Ubuntu	glib-networking	deb	18.04	`2.56.0-1ubuntu0.1`	Not reported	UBUNTU-CVE-2020-13645	Not reported
Ubuntu	balsa	deb	20.04	`2.6.0-2ubuntu0.1`	Not reported	UBUNTU-CVE-2020-13645	Not reported
Ubuntu	glib-networking	deb	20.04	`2.64.2-1ubuntu0.1`	Not reported	UBUNTU-CVE-2020-13645	Not reported
Opensuse	glib-networking	rpm	tumbleweed	`2.68.1-1.3`	Not reported	OPENSUSE-SU-2024:10790-1	Not reported
Suse	balsa	rpm	package hub 15 sp2	`2.6.1-bp153.2.3.1`	Not reported	OPENSUSE-SU-2021:1094-1	Not reported
Suse	balsa	rpm	package hub 15 sp3	`2.6.1-bp153.2.3.1`	Not reported	OPENSUSE-SU-2021:1094-1	Not reported
Opensuse	balsa	rpm	leap 15.2	`2.6.1-bp153.2.3.1`	Not reported	OPENSUSE-SU-2021:1094-1	Not reported
Opensuse	balsa	rpm	leap 15.3	`2.6.1-bp153.2.3.1`	Not reported	OPENSUSE-SU-2021:1094-1	Not reported

[Debian bug #961756]

OpenFactory catalog packages

[openSUSE Tumbleweed]

[glib-networking-32bit]Unknown
Source package: [glib-networking]
Details (1)
- 2.80.1-4.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.68.1-1.3
  Version impact unknown
  dsa · glib-networking · opensuse · tumbleweed
[glib-networking-lang]Unknown
Source package: [glib-networking]
Details (1)
- 2.80.1-4.1 · noarch · tumbleweed
  Unknown · Fixed: 2.68.1-1.3
  Version impact unknown
  dsa · glib-networking · opensuse · tumbleweed
[glib-networking-tests]Unknown
Source package: [glib-networking]
Details (1)
- 2.80.1-4.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.68.1-1.3
  Version impact unknown
  dsa · glib-networking · opensuse · tumbleweed
[glib-networking]Fixed
Source package: [glib-networking]
Details (1)
- 2.80.1-4.1 · x86_64 · tumbleweed
  Fixed · Fixed: 2.68.1-1.3
  dsa · glib-networking · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[glib-networking]Fixed
Details (2)
- 2.74.0-4 · amd64 · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12
- 2.74.0-4 · arm64 · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12
[glib-networking-common]Fixed
Source package: [glib-networking]
Details (2)
- 2.74.0-4 · all · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12
- 2.74.0-4 · all · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12
[glib-networking-services]Fixed
Source package: [glib-networking]
Details (2)
- 2.74.0-4 · amd64 · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12
- 2.74.0-4 · arm64 · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12
[glib-networking-tests]Fixed
Source package: [glib-networking]
Details (2)
- 2.74.0-4 · amd64 · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12
- 2.74.0-4 · arm64 · bookworm
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · bookworm; dsa · glib-networking · debian · 12

[Debian 13 (Trixie)]

[glib-networking]Fixed
Details (2)
- 2.80.1-1 · amd64 · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13
- 2.80.1-1 · arm64 · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13
[glib-networking-common]Fixed
Source package: [glib-networking]
Details (2)
- 2.80.1-1 · all · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13
- 2.80.1-1 · all · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13
[glib-networking-services]Fixed
Source package: [glib-networking]
Details (2)
- 2.80.1-1 · amd64 · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13
- 2.80.1-1 · arm64 · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13
[glib-networking-tests]Fixed
Source package: [glib-networking]
Details (2)
- 2.80.1-1 · amd64 · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13
- 2.80.1-1 · arm64 · trixie
  Fixed · Fixed: 2.64.3-2
  dsa · glib-networking · debian · 13

Observed: Oct 23, 2026, 5:47:42 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]