CVE-2022-1337: Uncontrolled Resource Consumption

April 14, 2022 (updated April 26, 2022)

The image proxy component in Mattermost version 6.4.1 and earlier allocates memory for multiple copies of a proxied image, which allows an authenticated attacker to crash the server via links to very large image files.

References

github.com/advisories/GHSA-f37q-q7p2-ccfc
mattermost.com/security-updates/
nvd.nist.gov/vuln/detail/CVE-2022-1337

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