What’s Vulnerable › Vulnerabilities

CVE-2017-18265

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-05-09 · updated 2026-06-17

Description

Prosody before 0.10.0 allows remote attackers to cause a denial of service (application crash), related to an incompatibility with certain versions of the LuaSocket library, such as the lua-socket package from Debian stretch. The attacker needs to trigger a stream error. A crash can be observed in, for example, the c2s module.

Affected products

• Debian Linux: 9.0
• Prosody: before 0.10.0 — fixed in 0.10.0

How to fix

Upgrade to a fixed version: Prosody 0.10.0. Check the vendor advisory for mitigations.

References

• https://bugs.debian.org/875829
• https://hg.prosody.im/0.9/rev/176b7f4e4ac9
• https://hg.prosody.im/0.9/rev/adfffc5b4e2a
• https://prosody.im/issues/issue/987
• https://www.debian.org/security/2018/dsa-4198
• https://bugs.debian.org/875829
• https://hg.prosody.im/0.9/rev/176b7f4e4ac9
• https://hg.prosody.im/0.9/rev/adfffc5b4e2a
• https://prosody.im/issues/issue/987
• https://www.debian.org/security/2018/dsa-4198

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