Critical Security Update for Sane-Backends: CVE-2020-12867 Vulnerability
Summary
RHSA-2021:1744: Red Hat Security Advisory: sane-backends security update. Affects sane-backends versions < 0:1.0.27-22.el8. Fixed in 0:1.0.27-22.el8. How to fix ↓
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Background
Sane-backends is an essential package in the Red Hat Enterprise Linux ecosystem, providing a standardized interface for accessing various scanner devices. It supports a wide range of hardware and is crucial for applications that require scanning capabilities. The package is part of the appstream repository in Red Hat Enterprise Linux 8, and its functionality is vital for users who rely on scanning services in their workflows. However, a security vulnerability has been identified that could potentially compromise the integrity of systems utilizing this package.
Vulnerability Detail
The vulnerability identified as CVE-2020-12867 affects the Sane-backends package, allowing unauthorized access to scanner devices. This issue arises from improper validation of user input, which could lead to a denial of service or unauthorized data access. The ramifications of this vulnerability are significant, as it could allow attackers to exploit the scanning capabilities of the system, potentially leading to data leaks or system crashes. The CVSS score for this vulnerability is 5.7, indicating a moderate level of risk.
How To Fix
Minimum fixed version
0:1.0.27-22.el8
This is the first release that contains the fix.
sudo dnf update sane-backendsTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can disable the scanning services that rely on the Sane-backends package until the update is applied. This can be done by stopping the daemon service with the command:
sudo systemctl stop sane-backends-daemon
However, this is not a permanent solution and should only be used until the package is updated.
Conclusion
The Sane-backends package has a critical vulnerability (CVE-2020-12867) that requires immediate attention. Users should update to the patched version 0:1.0.27-22.el8 to mitigate risks associated with unauthorized access to scanner devices. Temporary workarounds are available, but updating the package is the recommended course of action.
See every vulnerability recorded for sane-backends →
FAQ
CVE-2020-12867 is a security vulnerability in the Sane-backends package that allows unauthorized access to scanner devices.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The CVSS score of this vulnerability is 5.7, indicating a moderate level of risk.
If you cannot update the package immediately, consider stopping the scanning services that rely on Sane-backends as a temporary workaround.
More information about Sane-backends can be found in the official Red Hat documentation and the package's repository.
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