Vulnerability in Capnproto
CVE-2023-48230
Cap'n Proto is a data interchange format and capability-based RPC system. In versions 1.0 and 1.0.1, when using the KJ HTTP library with WebSocket compression enabled, a buffer underrun can be caused by a remote peer. The underrun always w…
EPSS: 0.042 (88.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Capnproto — versions >= 1.0, < 1.0.1.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/capnproto/capnproto/security/advisories/GHSA-r89h-f468-62w3 (x_refsource_CONFIRM)
- https://github.com/capnproto/capnproto/commit/75c5c1499aa6e7690b741204ff9af91cce526c59 (x_refsource_MISC)
- https://github.com/capnproto/capnproto/commit/e7f22da9c01286a2b0e1e5fbdf3ec9ab3aa128ff (x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-48230?
- CVE-2023-48230 is a medium-severity vulnerability in Capnproto, classified under Buffer Underwrite. CVSS score: 5.9/10. Published 2023-11-21.
- How severe is CVE-2023-48230?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2023-48230 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.