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Unrated severityNVD Advisory· Published Aug 9, 2011· Updated Apr 29, 2026

CVE-2011-2381

CVE-2011-2381

Description

CRLF injection in Bugzilla's flagmail notifications allows remote attackers to inject arbitrary email headers via a newline in an attachment description.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

CRLF injection in Bugzilla's flagmail notifications allows remote attackers to inject arbitrary email headers via a newline in an attachment description.

Vulnerability

A CRLF injection vulnerability exists in Bugzilla versions 2.17.1 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before 3.4.12, 3.5.x, 3.6.x before 3.6.6, 3.7.x, 4.0.x before 4.0.2, and 4.1.x before 4.1.3 [1]. The flaw resides in the flagmail notification component, where the attachment description is included in email headers without proper sanitization. If an attacker provides a description containing newline characters, they can inject arbitrary email headers into the notification sent by Bugzilla [2].

Exploitation

An attacker needs to be able to set or edit the description of an attachment on a bug, which typically requires normal user privileges to attach files or comment. The attacker crafts an attachment description that includes CRLF sequences (carriage return and line feed) followed by arbitrary email header lines. When a flag is changed on that attachment (e.g., setting a review flag), Bugzilla sends a flagmail notification to the requestee or requester, incorporating the malicious description into the email headers, thus injecting the attacker's headers [1][2].

Impact

A successful injection allows the attacker to control additional email headers in the generated notification. This can potentially be used for email header injection attacks, such as adding arbitrary CC or BCC recipients, spoofing the From address, or altering the Subject line. The attack can lead to information disclosure if email content is forwarded to unauthorized addresses, or aid in further phishing or social engineering campaigns [1][2].

Mitigation

Fixed versions are Bugzilla 3.4.12, 3.6.6, 4.0.2, and 4.1.3 [1]. Users should upgrade to one of these releases or later as soon as possible. No workaround is documented; the vulnerability is resolved by properly sanitizing attachment descriptions before inclusion in email headers. There is no indication that this CVE is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.

References
  1. 4.1.2, 4.0.1, 3.6.5, and 3.4.11 Security Advisory
  2. 657158 - (CVE-2011-2381) [SECURITY] Request email headers for attachment containing newline are corrupt

AI Insight generated on May 23, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

116
  • Mozilla Corporation/Bugzilla115 versions
    cpe:2.3:a:mozilla:bugzilla:2.17.1:*:*:*:*:*:*:*+ 114 more
    • cpe:2.3:a:mozilla:bugzilla:2.17.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.17.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.17.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.17.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.17.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.17.7:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18:rc2:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.18:rc3:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.19:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.19.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.19.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.19.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20.7:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.20:rc2:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.21:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.21.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.21.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22.7:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:2.22:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.0:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.10:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.11:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.7:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.8:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0.9:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.0:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.1.0:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.1.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.1.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.1.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.1.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.10:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.7:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.8:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2.9:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.2:rc2:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.3.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.3.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.3.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.3.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.10:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.11:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.7:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.8:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4.9:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.4:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.5.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.5.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.5.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6.0:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6.4:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6.5:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.6:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.7:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.7.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.7.2:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:3.7.3:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:4.0:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:4.0.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:4.0:rc1:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:4.0:rc2:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:4.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:4.1.1:*:*:*:*:*:*:*
    • cpe:2.3:a:mozilla:bugzilla:4.1.2:*:*:*:*:*:*:*
  • Python Bugzilla Project/Python Bugzillallm-fuzzy
    Range: 2.17.1 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before 3.4.12, 3.5.x, 3.6.x before 3.6.6, 3.7.x, 4.0.x before 4.0.2, and 4.1.x before 4.1.3

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

7

News mentions

0

No linked articles in our index yet.