Security readout for executives and security teams
Plain-English summary
GNOME libgda through 6.0.0 created certain web-provider network sessions without checking TLS certificates. That can let an attacker with network interception capability impersonate a server and read or alter traffic that users expected to be protected by HTTPS.
Executive priority
Treat this as a targeted remediation item, not an emergency based on current evidence. Prioritize systems where libgda handles sensitive data over networks, especially laptops, shared networks, or environments exposed to interception risk.
Technical view
The flaw is in gda-web-provider.c: SoupSessionSync objects were created without enabling TLS certificate verification. Sources describe the issue as exposing users to network man-in-the-middle attacks and note similarity to CVE-2016-20011. A GNOME commit and Fedora advisories are referenced.
Likely exposure
Exposure is most likely where applications use vulnerable GNOME libgda web-provider functionality on systems running libgda through 6.0.0. The bundle does not provide CPEs, package version ranges by distribution, or evidence that all libgda deployments use the affected path.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. Practical exploitation depends on a network-positioned attacker and a victim workflow that uses the affected libgda web provider over TLS.
Researcher notes
Source data is incomplete: no CVSS, CWE, CPEs, or exploit telemetry are provided. The core security issue is missing TLS certificate verification in SoupSessionSync usage, with an upstream commit and Fedora advisories available for remediation tracking.
Mitigation direction
- Apply vendor libgda updates referenced by your operating system or distribution.
- For Fedora systems, review the two Fedora 2021 package advisories in the bundle.
- If building from source, include the upstream GNOME libgda fix commit.
- Check current GNOME or distribution guidance before assuming a complete fix.
- Reduce use of untrusted networks for affected workflows until patched.
Validation and detection
- Inventory systems and applications with GNOME libgda installed.
- Identify whether the libgda web provider is used in production workflows.
- Confirm installed packages are newer than vulnerable vendor builds.
- Review gda-web-provider.c to verify TLS certificate verification is enabled.
- Check distribution advisory status for each affected operating system image.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-39359 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://blogs.gnome.org/mcatanzaro/2021/05/25/reminder-soupsessionsync-and-soupsessionasync-default-to-no-tls-certificate-verification/CVE reference
- https://gitlab.gnome.org/GNOME/libgda/-/issues/249CVE reference
- FEDORA-2021-084f819da6CVE reference · vendor-advisory
- FEDORA-2021-06510d73f1CVE reference · vendor-advisory
- https://github.com/GNOME/libgda/commit/bd7b9568bcd9f6d3e6680bb04323a670c842a62dCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
