The marked package before 0.3.4 for Node.js allows attackers to cause a denial of service (CPU consumption) via unspecified vectors that trigger a catastrophic backtracking issue for the em inline rule, aka a regular expression denial of service (ReDoS).
Weakness
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Marked | Marked_project | * | 0.3.4 (excluding) |
| Node-marked | Ubuntu | artful | * |
| Node-marked | Ubuntu | esm-apps/xenial | * |
| Node-marked | Ubuntu | trusty | * |
| Node-marked | Ubuntu | upstream | * |
| Node-marked | Ubuntu | wily | * |
| Node-marked | Ubuntu | xenial | * |
| Node-marked | Ubuntu | yakkety | * |
| Node-marked | Ubuntu | zesty | * |
Extended Description
Attackers can create crafted inputs that
intentionally cause the regular expression to use
excessive backtracking in a way that causes the CPU
consumption to spike.
Potential Mitigations
Related Attack Patterns
References
- http://www.openwall.com/lists/oss-security/2016/04/20/11
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S/
- https://nodesecurity.io/advisories/23
- https://support.f5.com/csp/article/K05052081?utm_source=f5support\u0026amp%3Butm_medium=RSS
- http://www.openwall.com/lists/oss-security/2016/04/20/11
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S/
- https://nodesecurity.io/advisories/23
- https://support.f5.com/csp/article/K05052081?utm_source=f5support\u0026amp%3Butm_medium=RSS