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    CVE-2006-1902

    fold_binary in fold-const.c in GNU Compiler Collection (gcc) 4.1 improperly handles pointer overflow when folding a certain expr comparison to a corresponding offset comparison in cases other than EQ_EXPR and NE_EXPR, which might introduce buffer overflow vulnerabilities into applications that could be exploited by context-dependent attackers.NOTE: the vendor states that the essence of the issue is "not correctly interpreting an offset to a pointer as a signed value."

    Published:Apr 20, 2006
    Last Modified:Apr 16, 2026
    EPS:Apr 20, 2006
    EPSS Score:0.00094
    CVSS Score:2.1

    Affected Products

    Vendor
    Gnu
    Product
    Gcc

    Exploits

    No exploit reference

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    References

    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=356896
    http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26763
    http://gcc.gnu.org/ml/gcc-bugs/2006-04/msg01297.html
    http://gcc.gnu.org/ml/gcc-bugs/2006-04/msg01298.html
    http://gcc.gnu.org/viewcvs/branches/gcc-4_1-branch/gcc/fold-const.c?r1=110549&r2=112698&pathrev=112698&diff_format=h
    http://www.securityfocus.com/archive/1/431184/100/0/threaded
    http://www.securityfocus.com/archive/1/431245/100/0/threaded
    http://www.securityfocus.com/archive/1/431297/100/0/threaded
    http://www.securityfocus.com/archive/1/431319/100/0/threaded
    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=356896
    http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26763
    http://gcc.gnu.org/ml/gcc-bugs/2006-04/msg01297.html
    http://gcc.gnu.org/ml/gcc-bugs/2006-04/msg01298.html
    http://gcc.gnu.org/viewcvs/branches/gcc-4_1-branch/gcc/fold-const.c?r1=110549&r2=112698&pathrev=112698&diff_format=h
    http://www.securityfocus.com/archive/1/431184/100/0/threaded
    http://www.securityfocus.com/archive/1/431245/100/0/threaded
    http://www.securityfocus.com/archive/1/431297/100/0/threaded
    http://www.securityfocus.com/archive/1/431319/100/0/threaded

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High