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GHSA-wq5f-xc86-pv6w
sharpImpact
A memory-related vulnerability has been discovered and fixed in the upstream librsvg dependency. When certain runtime-specific conditions apply, this vulnerability can lead to possible remote code execution (RCE) on glibc-based Linux.
Patches
Using prebuilt binaries provided by sharp?
Most people rely on the prebuilt binaries provided by sharp.
Please upgrade sharp to the latest version, currently 0.35.5, which provides librsvg 2.63.2.
Using a globally-installed librsvg?
Please ensure you are using the latest librsvg 2.63.2.
Workarounds
Add the following to your code to prevent sharp from decoding SVG images.
sharp.block({ operation: ["VipsForeignLoadSvg"] });
To avoid RCE, ensure you are using a node executable binary compiled as a Position Independent Executable (PIE). Most Linux package managers already use this security-hardening feature however be warned that the "official" Node.js binaries do not.
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The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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