CVE-2020-13645
published 2020-05-28CVE-2020-13645: In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnection skips hostname verification of the server's TLS certificate if the…
PriorityP434medium6.5CVSS 3.1
AVNACLPRNUINSUCLILAN
EPSS
1.93%
77.8th percentile
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.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | glib-networking | < glib-networking 2.64.3-2 (bookworm) | glib-networking 2.64.3-2 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| gnome | balsa | < 2.5.11 | 2.5.11 |
| gnome | balsa | — | — |
| gnome | glib-networking | < 2.62.4 | 2.62.4 |
| gnome | glib-networking | >= 0 < 2.64.3-2 | 2.64.3-2 |
| gnome | glib-networking | >= 0 < 2.64.3-2 | 2.64.3-2 |
| gnome | glib-networking | >= 0 < 2.64.3-2 | 2.64.3-2 |
| gnome | glib-networking | >= 0 < 2.64.3-2 | 2.64.3-2 |
| gnome | glib-networking | >= 2.64.0 < 2.64.3 | 2.64.3 |
| msrc | cbl2_glib-networking_2.59.1-8_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| msrc | cm1_glib-networking_2.59.1-6_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:N
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
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GHSA
GHSA-p43h-5x4h-9pp7: In GNOME glib-networking through 2
ghsa_unreviewed·2022-05-24
CVE-2020-13645 [MEDIUM] CWE-295 GHSA-p43h-5x4h-9pp7: In GNOME glib-networking through 2
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.
OSV
CVE-2020-13645: In GNOME glib-networking through 2
osv·2020-05-28·CVSS 6.5
CVE-2020-13645 [MEDIUM] CVE-2020-13645: In GNOME glib-networking through 2
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.
Ubuntu
GLib Networking vulnerability
vendor_ubuntu·2020-06-29
CVE-2020-13645 GLib Networking vulnerability
Title: GLib Networking vulnerability
Summary: Fraudulent security certificates could allow sensitive
information to be exposed when accessing the Internet.
It was discovered that glib-networking skipped hostname certificate
verification if the application failed to specify the server
identity. A remote attacker could use this to perform a
person-in-the-middle attack and expose sensitive information.
Instructions: In general, a standard system update will make all the necessary changes.
Microsoft
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 i
vendor_msrc·2020-05-12·CVSS 6.5
CVE-2020-13645 [MEDIUM] CWE-295 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 i
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the
Red Hat
glib-networking: GTlsClientConnection silently ignores unset server identity
vendor_redhat·2020-05-04·CVSS 6.5
CVE-2020-13645 [MEDIUM] CWE-297 glib-networking: GTlsClientConnection silently ignores unset server identity
glib-networking: GTlsClientConnection silently ignores unset server identity
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.
Package: glib-networking (Red Hat Enterprise Linux 6) - Out of support scope
Package: glib-networking (Red Hat Enterprise Linux 7) - Will not fix
Package: glib-networking (Red Hat Enterprise Linux 8) - Will not fix
Debian
CVE-2020-13645: glib-networking - In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnect...
vendor_debian·2020·CVSS 6.5
CVE-2020-13645 [MEDIUM] CVE-2020-13645: glib-networking - In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnect...
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.
Scope: local
bookworm: resolved (fixed in 2.64.3-2)
bullseye: resolved (fixed in 2.64.3-2)
forky: resolved (fixed in 2.64.3-2)
sid: resolved (fixed in 2.64.3-2)
trixie: resolved (fixed in 2.64.3-2)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-13645 glib-networking: GTlsClientConnection silently ignores unset server identity [fedora-all]
bugzilla·2020-06-01·CVSS 6.5
CVE-2020-13645 [MEDIUM] CVE-2020-13645 glib-networking: GTlsClientConnection silently ignores unset server identity [fedora-all]
CVE-2020-13645 glib-networking: GTlsClientConnection silently ignores unset server identity [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects
Bugzilla
CVE-2020-13645 glib-networking: GTlsClientConnection silently ignores unset server identity
bugzilla·2020-06-01·CVSS 6.5
CVE-2020-13645 [MEDIUM] CVE-2020-13645 glib-networking: GTlsClientConnection silently ignores unset server identity
CVE-2020-13645 glib-networking: GTlsClientConnection silently ignores unset server identity
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.
References:
https://gitlab.gnome.org/GNOME/balsa/-/issues/34
https://gitlab.gnome.org/GNOME/glib-networking/-/issues/135
Discussion:
Created glib-networking tracking bugs for this issue:
Affects: fedora-all [bug 1842646]
Bugzilla
CVE-2020-13645 mingw-glib-networking: glib-networking: GTlsClientConnection silently ignores unset server identity [fedora-all]
bugzilla·2020-06-01·CVSS 6.5
CVE-2020-13645 [MEDIUM] CVE-2020-13645 mingw-glib-networking: glib-networking: GTlsClientConnection silently ignores unset server identity [fedora-all]
CVE-2020-13645 mingw-glib-networking: glib-networking: GTlsClientConnection silently ignores unset server identity [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NO
https://gitlab.gnome.org/GNOME/balsa/-/issues/34https://gitlab.gnome.org/GNOME/glib-networking/-/issues/135https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLEX2IP62SU6WJ4SK3U766XGLQK3J62O/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LRCUM22YEWWKNMN2BP5LTVDM5P4VWIXS/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TQEQJQ4XFMFCFJTEXKL2ZO3UELBPCKSK/https://security.gentoo.org/glsa/202007-50https://security.netapp.com/advisory/ntap-20200608-0004/https://usn.ubuntu.com/4405-1/https://gitlab.gnome.org/GNOME/balsa/-/issues/34https://gitlab.gnome.org/GNOME/glib-networking/-/issues/135https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLEX2IP62SU6WJ4SK3U766XGLQK3J62O/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LRCUM22YEWWKNMN2BP5LTVDM5P4VWIXS/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TQEQJQ4XFMFCFJTEXKL2ZO3UELBPCKSK/https://security.gentoo.org/glsa/202007-50https://security.netapp.com/advisory/ntap-20200608-0004/https://usn.ubuntu.com/4405-1/
2020-05-28
Published