Is CVE-2023-5156 in the CISA KEV catalog?

No. CVE-2023-5156 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-5156?

CVE-2023-5156 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-5156?

CVE-2023-5156 has an EPSS score of 1.34% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-5156?

Upgrade glibc on debian 13 to 2.37-11 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-5156

HIGH

7.5

CVSS v3

NVD

Description

A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash.

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

glibcDebian

Fixed in:2.37-11CVE-2023-5156

glibcUbuntu

Fixed in:2.23-0ubuntu11.3+esm5USN-6541-1

Fixed in:2.27-3ubuntu1.6+esm1USN-6541-1

Fixed in:2.31-0ubuntu9.14USN-6541-1

Fixed in:2.35-0ubuntu3.5USN-6541-1

Fixed in:2.37-0ubuntu2.2USN-6541-1

libc-binUbuntu

Fixed in:2.23-0ubuntu11.3+esm5USN-6541-1

Fixed in:2.27-3ubuntu1.6+esm1USN-6541-1

Fixed in:2.31-0ubuntu9.14USN-6541-1

Fixed in:2.35-0ubuntu3.5USN-6541-1

Fixed in:2.37-0ubuntu2.2USN-6541-1

libc6Ubuntu

Fixed in:2.23-0ubuntu11.3+esm5USN-6541-1

Fixed in:2.27-3ubuntu1.6+esm1USN-6541-1

Fixed in:2.31-0ubuntu9.14USN-6541-1

Fixed in:2.35-0ubuntu3.5USN-6541-1

Fixed in:2.37-0ubuntu2.2USN-6541-1

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.34%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Patch3

Third-Party Advisory1

access.redhat.com

Other references5

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	21%	-	-

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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.