CVE-2020-6750 Security feature bypass in n/a
An attacker can bypass proxy configurations in GLib applications, potentially exposing user traffic and compromising privacy in anonymity-focused use cases.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-6750?
CVE-2020-6750 is a medium-severity vulnerability in Fedoraproject Fedora, published on 9 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2020-6750?
It affects 2 products.
Products include Fedoraproject Fedora, Gnome Glib.
How do I fix CVE-2020-6750?
Upgrade to a fixed version.
Is CVE-2020-6750 being exploited?
There is no known exploitation of CVE-2020-6750 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as ALPINE-CVE-2020-6750, AZL-6436, CLEANSTART-2026-UL93208, DEBIAN-CVE-2020-6750, GHSA-w778-hx63-vw7w, MGASA-2020-0118.