NULL-pointer Dereference Vulnerability in Privoxy by Privoxy
CVE-2021-20213

7.5HIGH

Key Information:

Vendor

Privoxy

Status
Privoxy
Vendor
CVE Published:
25 March 2021

What is CVE-2021-20213?

A vulnerability was identified in Privoxy versions prior to 3.0.29 that affects the handling of incoming requests when the accept-intercepted-requests feature is enabled. This flaw is due to a NULL-pointer dereference, which can result in a crash of the application if the request destination cannot be retrieved from the Host header. Additionally, in scenarios where memory allocation fails, this vulnerability may exacerbate stability issues within the software.

Affected Version(s)

privoxy Privoxy 3.0.29

References

https://www.privoxy.org/3.0.29/user-manual/whatsnew.html
x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1928739
x_refsource_MISC
https://security.gentoo.org/glsa/202107-16
vendor-advisoryx_refsource_GENTOO

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.