I am drawing a rectangular but on glColor4f app crash, and this happen only in ios4.3 devices not on iOS 5.1. I am stuck over here please help me on that. I am doing following code.

QCAR::Matrix44F modelViewProjection;

glColor4f(0.5f,0.0f,0.0f,0.0f);

ShaderUtils::multiplyMatrix(&qUtils.projectionMatr ix.data[0], &modelViewMatrix.data[0], &modelViewProjection.data[0]);
glUseProgram(shaderProgramID);
glVertexAttribPointer(vertexHandle, 3, GL_FLOAT, GL_FALSE, 0, (const GLvoid*) &vbVertices[0]);
glEnableVertexAttribArray(vertexHandle);
glUniformMatrix4fv(mvpMatrixHandle, 1, GL_FALSE, (GLfloat*)&modelViewProjection.data[0] );
glColor4f(0.5f,0.0f,0.0f,0.0f);

glEnableClientState (GL_VERTEX_ARRAY);
glEnableClientState (GL_COLOR_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
// glColorPointer(4, GL_FLOAT, 0, triangleColors);
glVertexPointer(3, GL_FLOAT, 0, (const GLvoid*) &vbVertices[0]);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_TEXTURE_2D);
glDrawArrays(GL_LINES, 0, 8);
//glDisableClientState(GL_TEXTURE_COORD_ARRAY);
//glDisable(GL_TEXTURE_2D);
glDisableVertexAttribArray(vertexHandle);