OpenPKG Security Advisory

Publisher Name:          OpenPKG GmbH
Publisher Home:          http://openpkg.com/

Advisory Id (public):    OpenPKG-SA-2004.012
Advisory Type:           OpenPKG Security Advisory (SA)
Advisory Directory:      http://openpkg.com/go/OpenPKG-SA
Advisory Document:       http://openpkg.com/go/OpenPKG-SA-2004.012
Advisory Published:      2009-01-07 09:22 UTC

Issue Id (internal):     OpenPKG-SI-20040408.01
Issue First Created:     2004-04-08
Issue Last Modified:     2006-11-28
Issue Revision:          06


Subject Name:            fetchmail
Subject Summary:         Batch client for POP and IMAP protocols
Subject Home:            http://www.catb.org/~esr/fetchmail/
Subject Versions:        * <= 6.2.4

Vulnerability Id:        CVE-2003-0792
Vulnerability Scope:     global (not OpenPKG specific)

Attack Feasibility:      run-time
Attack Vector:           remote network
Attack Impact:           denial of service

Description:
    According to a Mandrake Linux security advisory [0], a denial of
    service (DoS) vulnerability exists in the header rewriting code of
    Fetchmail [1]. The code's intention is to hack message headers so
    replies work properly. However, logic in the reply_hack() function
    fails to allocate enough memory for long lines and may write past a
    memory boundary. This could allow an attacker to cause a denial of
    service by sending a specially crafted email and crashing fetchmail.

References:
    [0] http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2003:101
    [1] http://www.catb.org/~esr/fetchmail/
    [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0792
    [3] http://www.openpkg.org/tutorial.html#regular-source
    [4] http://www.openpkg.org/tutorial.html#regular-binary
    [5] ftp://ftp.openpkg.org/release/1.3/UPD/fetchmail-6.2.3-1.3.1.src.rpm
    [6] ftp://ftp.openpkg.org/release/1.3/UPD/
    [7] http://www.openpkg.org/security.html#signature


Primary Package Name:    fetchmail
Primary Package Home:    http://openpkg.org/go/package/fetchmail

Affected Distribution:   Affected Branch:  Affected Package:
OpenPKG Community        1.3-SOLID         fetchmail-6.2.3-1.3.0
OpenPKG Community        2.0-SOLID         n/a
OpenPKG Community        CURRENT           fetchmail-6.2.4-20031008

Corrected Distribution:  Corrected Branch: Corrected Package:
OpenPKG Community        1.3-SOLID         fetchmail-6.2.3-1.3.1
OpenPKG Community        2.0-SOLID         n/a
OpenPKG Community        CURRENT           fetchmail-6.2.5-20031016