What is CVE-2021-44540?

CVE-2021-44540 is a high-severity vulnerability in Privoxy, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2021-12-23.

How severe is CVE-2021-44540?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-44540 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Privoxy

CVE-2021-44540

A vulnerability was found in Privoxy which was fixed in get_url_spec_param() by freeing memory of compiled pattern spec before bailing.

EPSS: 0.013 (67.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Privoxy
N/a Privoxy — versions Privoxy 3.0.33

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

Public proof-of-concept exploits

References

secalert@redhat.com (x_refsource_MISC)
secalert@redhat.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-44540?: CVE-2021-44540 is a high-severity vulnerability in Privoxy, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2021-12-23.
How severe is CVE-2021-44540?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-44540 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.