CVE-2015-2313: n/a vulnerability

CVE-2015-2313: Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.2, when an application invokes the totalSize me...

Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.2, when an application invokes the totalSize method on an object reader, allows remote peers to cause a denial of service (CPU consumption) via a crafted small message, which triggers a "tight" for loop. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-2312.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 05:10 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2015-2313 is a denial-of-service flaw in older Cap'n Proto versions. A remote peer can send a small crafted message that makes affected applications consume excessive CPU when they call totalSize() on an object reader. Exposure is likely limited to applications or services using affected Cap'n Proto versions and invoking totalSize() on object readers for messages received from remote peers. Treat this as a targeted availability risk. Prioritize internet-facing or partner-facing services that parse Cap'n Proto messages, especially where CPU exhaustion could disrupt customer-facing operations. Mitigation focus: Upgrade Cap'n Proto 0.4.x to 0.4.1.1 or later.; Upgrade Cap'n Proto 0.5.x to 0.5.1.2 or later.; Check OS package advisories, especially Debian-derived packages, for backported fixes..

Prepared: Jun 12, 2026, 21:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2015-2313 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 9, 2017, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/capnproto/capnproto/commit/80149744bdafa3ad4eedc83f8ab675e27baee868CVE reference · x_refsource_CONFIRM
https://github.com/capnproto/capnproto/blob/master/security-advisories/2015-03-05-0-c%2B%2B-addl-cpu-amplification.mdCVE reference · x_refsource_CONFIRM
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780568CVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.