Google gperftools 2.7 has a memory leak in malloc_extension.cc, related to MallocExtension::Register and InitModule.

published 2018-07-07 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-5363

cvss: 7.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits: 0; none known

Google gperftools 2.7 has a memory leak in malloc_extension.cc, related to MallocExtension::Register and InitModule. NOTE: the software maintainer indicates that this is not a bug; it is only a false-positive report from the LeakSanitizer program

Patch / fix

distros 1

gperftools CBL-Mariner 2.0 2.7-4

azure linux advisories AZL-6453

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 23 mo ago (2024-11-14)

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-772 Missing Release of Resource after Effective Lifetime

References

github.com /gperftools/gperftools/issues/1013
third-party-advisory

Sources

CVE List CVE-2018-13420
NVD CVE-2018-13420

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary