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Home > Cybersecurity > Major Linux RPM problem solved

Major Linux RPM problem solved

RedHat's default package management system RPM contained a hidden security bug since day one. CloudLinux's Linux developer Dmitry Antipov discovered this bug and submitted a patch.


Seda Nur Cinar Seda Nur Cinar
July 1, 2021
1 min read
Major Linux RPM problem solved

RPM became the default way to distribute software for Red Hat Linux-based distributions for decades. However, RPM contained a hidden security bug since day one. Dmitry Antipov, a Linux developer at CloudLinux, discovered this bug and released a patch to fix this.

Unauthorized RPM packages cause a big security hole

Dmitry Antipov, a Linux developer at CloudLinux, AlmaLinux OS‘s parent company, first found the problem in March 2021. Antipov discovered that RPM would work with unauthorized RPM packages. He tried to fix the simple use case with the only revoked subkey.

Antipov explained the bug in an interview, saying,

“The problem is that both RPM and DNF do a check to see if the key is valid and genuine but not expired, but not for revocation. As I understand it, all the distribution vendors have just been lucky enough never to have been hit by this.”

Without warning, unsigned packages or packages signed with revoked keys could silently be patched or updated. Users could not know if it was kosher. This was the result of RPM’s revocation. Antipov and TuxCare team think opening a Common Vulnerabilities and Exposures (CVE) about the issue since.

See more Cybersecurity News


Seda Nur Cinar

Seda Nur Cinar

Seda Nur Cinar is the news editor of the Cloud7 News. With more than 8 years of Linux and cloud experience, Seda is a Linux and opensource enthusiast, security researcher and a web application developer.

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