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CVE-2021-35525

Date: June 28, 2021

PostSRSd before 1.11 allows a denial of service (subprocess hang) if Postfix sends certain long data fields such as multiple concatenated email addresses. NOTE: the PostSRSd maintainer acknowledges "theoretically, this error should never occur ... I'm not sure if there's a reliable way to trigger this condition by an external attacker, but it is a security bug in PostSRSd nevertheless."

Language: C

Severity Score

Related Resources (8)

https://bugs.gentoo.org/793674
https://github.com/roehling/postsrsd/releases/tag/1.11
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-35525
https://security-tracker.debian.org/tracker/CVE-2021-35525
https://github.com/roehling/postsrsd/commit/077be98d8c8a9847e4ae0c7dc09e7474cbe27db2
https://nvd.nist.gov/vuln/detail/CVE-2021-35525
https://security.gentoo.org/glsa/202107-08
https://www.mend.io/vulnerability-database/CVE-2021-35525

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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