CVE-2013-4242: n/a vulnerability

CVE-2013-4242: GnuPG before 1.4.14, and Libgcrypt before 1.5.3 as used in GnuPG 2.0.x and possibly other products, allows...

GnuPG before 1.4.14, and Libgcrypt before 1.5.3 as used in GnuPG 2.0.x and possibly other products, allows local users to obtain private RSA keys via a cache side-channel attack involving the L3 cache, aka Flush+Reload.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 16:38 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects old GnuPG and Libgcrypt versions and can let a local user recover private RSA keys through a processor cache side channel. The business risk is key compromise: encrypted data, signed software, or identities protected by those keys may no longer be trustworthy. Exposure is most likely on legacy systems running GnuPG before 1.4.14 or Libgcrypt before 1.5.3, especially where RSA private keys are used and untrusted local users or workloads can run on the same host. Prioritize remediation if any legacy cryptography hosts still use affected versions or protect signing, backup, release, or administrative keys. For fully patched modern fleets, treat this as a historical exposure check rather than an emergency. Mitigation focus: Upgrade GnuPG to 1.4.14 or later where applicable.; Upgrade Libgcrypt to 1.5.3 or vendor-supported fixed packages.; Apply relevant Debian, Ubuntu, Red Hat, SUSE, Oracle, or Juniper advisories..

Prepared: Jun 14, 2026, 21:50 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

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 19, 2013, 23:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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