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CVE-2020-6750

MEDIUMCVSS 5.9/10EPSS 2.17%

Last modified

CVE-2020-6750 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting via a proxy server when configured to do so, because the proxy_addr field is mishandled. This bug is timing-dependent and may occur only sporadically depending on network delays. EPSS estimates a 2.17% chance of exploitation in the next 30 days.

Description

GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting via a proxy server when configured to do so, because the proxy_addr field is mishandled. This bug is timing-dependent and may occur only sporadically depending on network delays. The greatest security relevance is in use cases where a proxy is used to help with privacy/anonymity, even though there is no technical barrier to a direct connection. NOTE: versions before 2.60 are unaffected.

Metrics

CVSS 3.1
5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
2.17%

80.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
GnomeGlib>= 2.60.0, <= 2.62.4
FedoraprojectFedora30
FedoraprojectFedora31

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-6750?
GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting via a proxy server when configured to do so, because the proxy_addr field is mishandled. This bug is timing-dependent and may occur only sporadically depending on network delays. The greatest security relevance is in use cases where a proxy is used to help with privacy/anonymity, even though there is no technical barrier to a direct connection. NOTE: versions before 2.60 are unaffected.
How severe is CVE-2020-6750?
CVE-2020-6750 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 2.17% probability of exploitation in the next 30 days.
How do I fix CVE-2020-6750?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST