Vulnerability Description
Cap'n Proto is a data interchange format and remote procedure call (RPC) system. Cap'n Proro prior to versions 0.7.1, 0.8.1, 0.9.2, and 0.10.3, as well as versions of Cap'n Proto's Rust implementation prior to 0.13.7, 0.14.11, and 0.15.2 are vulnerable to out-of-bounds read due to logic error handling list-of-list. This issue may lead someone to remotely segfault a peer by sending it a malicious message, if the victim performs certain actions on a list-of-pointer type. Exfiltration of memory is possible if the victim performs additional certain actions on a list-of-pointer type. To be vulnerable, an application must perform a specific sequence of actions, described in the GitHub Security Advisory. The bug is present in inlined code, therefore the fix will require rebuilding dependent applications. Cap'n Proto has C++ fixes available in versions 0.7.1, 0.8.1, 0.9.2, and 0.10.3. The `capnp` Rust crate has fixes available in versions 0.13.7, 0.14.11, and 0.15.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Capnproto | Capnproto | < 0.7.1 |
| Capnproto | Capnp | < 0.13.7 |
| Fedoraproject | Fedora | 36 |
Related Weaknesses (CWE)
References
- https://github.com/capnproto/capnproto/commit/25d34c67863fd960af34fc4f82a7ca3362PatchThird Party Advisory
- https://github.com/capnproto/capnproto/security/advisories/GHSA-qqff-4vw4-f6hxPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://github.com/capnproto/capnproto/commit/25d34c67863fd960af34fc4f82a7ca3362PatchThird Party Advisory
- https://github.com/capnproto/capnproto/security/advisories/GHSA-qqff-4vw4-f6hxPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2022-46149?
CVE-2022-46149 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Cap'n Proto is a data interchange format and remote procedure call (RPC) system. Cap'n Proro prior to versions 0.7.1, 0.8.1, 0.9.2, and 0.10.3, as well as versions of Cap'n Proto's Rust implementation...
How severe is CVE-2022-46149?
CVE-2022-46149 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-46149?
Check the references section above for vendor advisories and patch information. Affected products include: Capnproto Capnproto, Capnproto Capnp, Fedoraproject Fedora.