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CVE-2011-1764

Date: October 4, 2011

Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.

Language: C

Severity Score

Related Resources (11)

http://bugs.exim.org/show_bug.cgi?id=1106
https://nvd.nist.gov/vuln/detail/CVE-2011-1764
https://bugzilla.redhat.com/show_bug.cgi?id=702474
https://security-tracker.debian.org/tracker/CVE-2011-1764
http://secunia.com/advisories/51155
http://git.exim.org/exim.git/commit/337e3505b0e6cd4309db6bf6062b33fa56e06cf8
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624670
http://www.debian.org/security/2011/dsa-2232
http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2011-1764
https://www.mend.io/vulnerability-database/CVE-2011-1764

Severity Score

Weakness Type (CWE)

Use of Externally-Controlled Format String

CWE-134

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): LOW
Integrity (I): LOW
Availability (A): LOW

CVSS v2

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

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