High severity · published Sep 25, 2023
CVE-2023-5156
Glibc: dos due to memory leak in getaddrinfo.c
7.5
CVSS
1.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
EL
Enterprise Linux · Redhat
8.0; 9.0 · source: NVD
GL
Glibc · Gnu
2.34 before 2.39 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5156
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5156
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-5156
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2240541
Issue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=30884
Mailing List
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796
www.openwall.com
http://www.openwall.com/lists/oss-security/2023/10/03/4
www.openwall.com
http://www.openwall.com/lists/oss-security/2023/10/03/5
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