Is CVE-2015-0837 in the CISA KEV catalog?

No. CVE-2015-0837 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-0837?

CVE-2015-0837 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2015-0837?

CVE-2015-0837 has an EPSS score of 1.95% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-0837?

Upgrade libgcrypt20 on debian 11 to 1.6.3-2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2015-0837

MEDIUMEPSS 78th pctl

5.9

CVSS v3

NVD

Description

The mpi_powm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."

CWE-203

How to fix

Remediation Available

libgcrypt20Debian

Fixed in:1.6.3-2CVE-2015-0837

gnupgUbuntu

Fixed in:1.4.16-1ubuntu2.3USN-2554-1

gnupg2Ubuntu

Fixed in:2.0.22-3ubuntu1.3USN-2554-1

libgcrypt11Ubuntu

Fixed in:1.5.3-2ubuntu4.2USN-2555-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

1.95%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.