CVE-2020-26154 Memory corruption in n/a
A buffer overflow in libproxy allows attackers to execute arbitrary code or cause denial of service when PAC is enabled and a large PAC file is delivered.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-26154?
CVE-2020-26154 is a critical memory corruption vulnerability in Debian Debian Linux, published on 29 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.
Weakness: CWE-120
Which versions are affected by CVE-2020-26154?
It affects 4 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Libproxy Project Libproxy, Opensuse Leap.
How do I fix CVE-2020-26154?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-26154 being exploited?
There is no known exploitation of CVE-2020-26154 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-7271, DEBIAN-CVE-2020-26154, DLA-2450-1, GHSA-49gc-vgp4-6qhm, MGASA-2020-0399, UBUNTU-CVE-2020-26154 and 1 more.